Bump dagger/dagger-for-github from 6 to 7

Bumps [dagger/dagger-for-github](https://github.com/dagger/dagger-for-github) from 6 to 7.
- [Release notes](https://github.com/dagger/dagger-for-github/releases)
- [Commits](dagger/dagger-for-github@v6...v7)

---
updated-dependencies:
- dependency-name: dagger/dagger-for-github
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/pr-integration-tests.yml

@@ -53,14 +53,14 @@ jobs:
       - name: Get Grafana golang version
         run: echo "GRAFANA_GO_VERSION=$(grep "go 1." grafana/go.work |  cut -d\  -f2)" >> "$GITHUB_ENV"
       - name: Grafana tests
-        uses: dagger/dagger-for-github@v6
+        uses: dagger/dagger-for-github@v7
         if: matrix.type == 'grafana'
         with:
           verb: run
           dagger-flags: '--quiet'
           args: go run ./cmd artifacts -a targz:grafana:linux/amd64 --grafana-dir=grafana --go-version=${GRAFANA_GO_VERSION}
       - name: Enterprise tests
-        uses: dagger/dagger-for-github@v6
+        uses: dagger/dagger-for-github@v7
         if: matrix.type == 'enterprise'
         with:
           verb: run