Bump actions/upload-artifact from 4 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...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] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -60,7 +60,7 @@ jobs:
         verbose: true
 
     - name: Upload coverage reports
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       with:
         name: coverage-report-go${{ matrix.go-version }}
         path: |
@@ -113,7 +113,7 @@ jobs:
         CGO_ENABLED=0 go build -ldflags="-w -s" -o build/${BINARY_NAME}-${GOOS}-${GOARCH} ./cmd/devbox
 
     - name: Upload artifacts
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       with:
         name: devbox-${{ matrix.goos }}-${{ matrix.goarch }}
         path: build/devbox*

.github/workflows/coverage.yml

@@ -54,7 +54,7 @@ jobs:
         token: ${{ secrets.CODECOV_TOKEN }}
 
     - name: Upload coverage reports to artifacts
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       with:
         name: coverage-reports
         path: |

.github/workflows/docs.yml

@@ -32,7 +32,7 @@ jobs:
       run: npm run build
 
     - name: Upload documentation artifacts
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       with:
         name: documentation
         path: docs/dist/

.github/workflows/release.yml

@@ -81,7 +81,7 @@ jobs:
 
     - name: Upload artifacts (manual trigger)
       if: github.event_name == 'workflow_dispatch'
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       with:
         name: devbox-${{ matrix.goos }}-${{ matrix.goarch }}
         path: build/devbox-*