chore: Set permissions for GitHub actions (#2555)

* chore: Set permissions for GitHub actions

 Restrict the GitHub token permissions only to the required ones; this way, even if the attackers will succeed in compromising your workflow, they won’t be able to do much.

- Included permissions for the action. https://github.com/ossf/scorecard/blob/main/docs/checks.md#token-permissions

https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#permissions

https://docs.github.com/en/actions/using-jobs/assigning-permissions-to-jobs

[Keeping your GitHub Actions and workflows secure Part 1: Preventing pwn requests](https://securitylab.github.com/research/github-actions-preventing-pwn-requests/)

Signed-off-by: naveensrinivasan <172697+naveensrinivasan@users.noreply.github.com>

* Update docs-production-deploy.yml

* added `packages: write` permissions

this is apparently needed by GH so this repository can push new images.

Co-authored-by: Georg Lauterbach <44545919+georglauterbach@users.noreply.github.com>
Co-authored-by: Casper <casperklein@users.noreply.github.com>

.github/workflows/docs-production-deploy.yml

@@ -23,6 +23,8 @@ env:
 
 jobs:
   deploy:
+    permissions:
+      contents: write
     name: 'Deploy Docs'
     runs-on: ubuntu-20.04
     steps:
@@ -68,6 +70,8 @@ jobs:
           user_email: ${{ env.GIT_EMAIL }}
 
   add-version-to-docs:
+    permissions:
+      contents: write
     name: 'Update `versions.json` if necessary'
     runs-on: ubuntu-20.04
     if: startsWith(github.ref, 'refs/tags/')