In my Example I need the #Basename of a #Repository. As you know, actions are saved in your Repository under the Path: .github/workflows/workflow.yaml

        #get Repository basename, use with ${{ env.REPO_NAME }}
      - name: get Repository name
        run: |
          echo "REPO_NAME=$(basename ${{ github.repository }})" >> $GITHUB_ENV


        # echo target repository basename
      - name: fetch translations
        run: 
          echp ${{ env.REPO_NAME }}

If found this working Solution on StackOverflow [1]

[1] https://stackoverflow.com/a/71799882

In my Example I tried to checkout source code, scan for Strings, append found Strings to a File and commit changes to separate repository.

As you know, actions are saved in your Repository under the Path: .github/workflows/workflow.yaml

steps:
        # check out source repository
      - name: checkout source repository (this)
        uses: actions/checkout@v3

        # check out target repository
      - name: checkout target
        uses: actions/checkout@v3
        with: 
          repository: example/target
          ssh-key: ${{ secrets.DEPLOY_SECRET }}

        # do your thing...
      - name: do things
        run: modify files in target...

      # commit to target repository
      - name: commit changes
        uses: stefanzweifel/git-auto-commit-action@v4
        with:
          repository: example/target

Explanation: -1. Checkout run with “example/source” -2․ Checkout run with “example/target” – used “with”: – repository to Checkout a other Repo – ssh-key for authentication (Deploy Key for target) -3. commit Changes, if found

Good luck!