Bump actions/first-interaction from 1.3.0 to 2.0.0

Bumps [actions/first-interaction](https://github.com/actions/first-interaction) from 1.3.0 to 2.0.0.
- [Release notes](https://github.com/actions/first-interaction/releases)
- [Commits](https://github.com/actions/first-interaction/compare/v1.3.0...v2.0.0)

---
updated-dependencies:
- dependency-name: actions/first-interaction
  dependency-version: 2.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/welcome.yml

@@ -11,7 +11,7 @@ jobs:
     permissions: write-all
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/first-interaction@v1.3.0
+      - uses: actions/first-interaction@v2.0.0
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           issue-message: