ci(deps): bump actions/upload-artifact from 5 to 6 (#67)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -146,7 +146,7 @@ jobs:
 
       - name: Upload test results
         if: always()
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: test-results-${{ matrix.os }}-go${{ matrix.go-version }}
           path: |
@@ -254,7 +254,7 @@ jobs:
           coverage-file-name: coverage/coverage.out
 
       - name: Upload coverage reports
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: coverage-reports
           path: |
@@ -354,7 +354,7 @@ jobs:
           ./bin/protoc-gen-openapiv3 --version || true
           
       - name: Upload binaries
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: plugin-binaries
           path: bin/

.github/workflows/proto.yml

@@ -199,7 +199,7 @@ jobs:
             proto/sebuf/http/*.proto
             
       - name: Upload documentation
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: proto-documentation
           path: docs/proto/

.github/workflows/release.yml

@@ -70,7 +70,7 @@ jobs:
           GPG_FINGERPRINT: ${{ secrets.GPG_FINGERPRINT }}
 
       - name: Upload release artifacts
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: release-artifacts
           path: dist/