chore(ci): Bump actions/add-to-project from 0.6.1 to 1.0.0 (#20194)

Bumps [actions/add-to-project](https://github.com/actions/add-to-project) from 0.6.1 to 1.0.0.
- [Release notes](https://github.com/actions/add-to-project/releases)
- [Commits](actions/add-to-project@v0.6.1...v1.0.0)

---
updated-dependencies:
- dependency-name: actions/add-to-project
  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>

.github/workflows/gardener_open_issue.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
-      - uses: actions/add-to-project@v0.6.1
+      - uses: actions/add-to-project@v1.0.0
         with:
           project-url: https://github.com/orgs/vectordotdev/projects/49
           github-token: ${{ secrets.GH_PROJECT_PAT }}

.github/workflows/gardener_open_pr.yml

@@ -26,7 +26,7 @@ jobs:
           username: ${{ github.actor }}
           team: vector
           GITHUB_TOKEN: ${{ steps.generate_token.outputs.token }}
-      - uses: actions/add-to-project@v0.6.1
+      - uses: actions/add-to-project@v1.0.0
         if: ${{ steps.checkVectorMember.outputs.isTeamMember == 'false' }}
         with:
           project-url: https://github.com/orgs/vectordotdev/projects/49
@@ -37,7 +37,7 @@ jobs:
     timeout-minutes: 5
     if: ${{ github.actor == 'dependabot[bot]' }}
     steps:
-      - uses: actions/add-to-project@v0.6.1
+      - uses: actions/add-to-project@v1.0.0
         with:
           project-url: https://github.com/orgs/vectordotdev/projects/49
           github-token: ${{ secrets.GH_PROJECT_PAT }}