Update GitHub Actions versions (#25)

Author: SoundGoof

.github/workflows/system-tests.yml

@@ -54,7 +54,7 @@ jobs:
         run: sh netsnmp/tests/system/run-coverage.sh
 
       - name: Upload C coverage report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: client-intf-coverage
           path: |

.github/workflows/windows.yml

@@ -40,7 +40,7 @@ jobs:
       # gives us net-snmp-config on PATH, which setup.py relies on.
       - name: Cache net-snmp install
         id: cache-netsnmp
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ${{ runner.temp }}\msys64\mingw64\bin\net-snmp-config

.gitignore

@@ -1,7 +1,11 @@
 build/
 dist/
+.vscode/
 __pycache__/
 *.py[co]
+*.so
+*.gcov
+client_intf-coverage.txt
 .*.swp
 .*.swo
 *.egg-info/