chore: upgrade all Python packages and fix linting issues

- Update all dependencies to latest versions (fastmcp, httpx, packaging, etc.)
- Downgrade click from yanked 8.2.2 to stable 8.1.7
- Fix code formatting and linting issues with ruff
- Most tests passing (2 test failures in dependency resolver need investigation)

tests/test_download_stats.py

@@ -159,7 +159,7 @@ class TestDownloadStats:
     async def test_get_top_packages_by_downloads_fallback(self):
         """Test top packages retrieval when PyPI API fails (fallback mode)."""
         from pypi_query_mcp.core.exceptions import PyPIServerError
-        
+
         with patch(
             "pypi_query_mcp.tools.download_stats.PyPIStatsClient"
         ) as mock_stats_client:
@@ -180,7 +180,7 @@ class TestDownloadStats:
             assert all("category" in pkg for pkg in result["top_packages"])
             assert all("description" in pkg for pkg in result["top_packages"])
             assert "curated" in result["data_source"]
-            
+
             # Check that all packages have estimated downloads
             assert all(pkg.get("estimated", False) for pkg in result["top_packages"])
 
@@ -188,47 +188,56 @@ class TestDownloadStats:
     async def test_get_top_packages_github_enhancement(self):
         """Test GitHub enhancement functionality."""
         from pypi_query_mcp.core.exceptions import PyPIServerError
-        
+
         mock_github_stats = {
             "stars": 50000,
             "forks": 5000,
             "updated_at": "2024-01-01T00:00:00Z",
             "language": "Python",
-            "topics": ["http", "requests"]
+            "topics": ["http", "requests"],
         }
-        
+
         with (
-            patch("pypi_query_mcp.tools.download_stats.PyPIStatsClient") as mock_stats_client,
-            patch("pypi_query_mcp.tools.download_stats.GitHubAPIClient") as mock_github_client
+            patch(
+                "pypi_query_mcp.tools.download_stats.PyPIStatsClient"
+            ) as mock_stats_client,
+            patch(
+                "pypi_query_mcp.tools.download_stats.GitHubAPIClient"
+            ) as mock_github_client,
         ):
             # Mock PyPI failure
             mock_stats_instance = AsyncMock()
             mock_stats_instance.get_recent_downloads.side_effect = PyPIServerError(502)
             mock_stats_client.return_value.__aenter__.return_value = mock_stats_instance
-            
-            # Mock GitHub success  
+
+            # Mock GitHub success
             mock_github_instance = AsyncMock()
             mock_github_instance.get_multiple_repo_stats.return_value = {
                 "psf/requests": mock_github_stats
             }
-            mock_github_client.return_value.__aenter__.return_value = mock_github_instance
+            mock_github_client.return_value.__aenter__.return_value = (
+                mock_github_instance
+            )
 
             result = await get_top_packages_by_downloads("month", 10)
-            
+
             # Find requests package (should be enhanced with GitHub data)
-            requests_pkg = next((pkg for pkg in result["top_packages"] if pkg["package"] == "requests"), None)
-            
+            requests_pkg = next(
+                (pkg for pkg in result["top_packages"] if pkg["package"] == "requests"),
+                None,
+            )
+
             if requests_pkg:
                 assert "github_stars" in requests_pkg
                 assert "github_forks" in requests_pkg
                 assert requests_pkg["github_stars"] == 50000
                 assert requests_pkg.get("github_enhanced", False) == True
 
-    @pytest.mark.asyncio 
+    @pytest.mark.asyncio
     async def test_get_top_packages_different_periods(self):
         """Test top packages with different time periods."""
         from pypi_query_mcp.core.exceptions import PyPIServerError
-        
+
         with patch(
             "pypi_query_mcp.tools.download_stats.PyPIStatsClient"
         ) as mock_stats_client:
@@ -238,16 +247,20 @@ class TestDownloadStats:
 
             for period in ["day", "week", "month"]:
                 result = await get_top_packages_by_downloads(period, 3)
-                
+
                 assert result["period"] == period
                 assert len(result["top_packages"]) == 3
-                
+
                 # Check that downloads are scaled appropriately for the period
                 # Day should have much smaller numbers than month
                 if period == "day":
-                    assert all(pkg["downloads"] < 50_000_000 for pkg in result["top_packages"])
+                    assert all(
+                        pkg["downloads"] < 50_000_000 for pkg in result["top_packages"]
+                    )
                 elif period == "month":
-                    assert any(pkg["downloads"] > 100_000_000 for pkg in result["top_packages"])
+                    assert any(
+                        pkg["downloads"] > 100_000_000 for pkg in result["top_packages"]
+                    )
 
     def test_analyze_download_stats(self):
         """Test download statistics analysis."""