Support upload outputs and use needs context on Actions (#24230)

See [Defining outputs for
jobs](https://docs.github.com/en/actions/using-jobs/defining-outputs-for-jobs)
and [Example usage of the needs
context](https://docs.github.com/en/actions/learn-github-actions/contexts#example-usage-of-the-needs-context).

Related to:
- [actions-proto-def
#5](https://gitea.com/gitea/actions-proto-def/pulls/5)
- [act_runner #133](https://gitea.com/gitea/act_runner/pulls/133)

<details>
<summary>Tests & screenshots</summary>

Test workflow file:
```yaml
name: outputs
on: push

jobs:
  job1:
    runs-on: ubuntu-latest
    outputs:
      output1: ${{ steps.step1.outputs.output1 }}
      output2: ${{ steps.step2.outputs.output2 }}
    steps:
      - name: step1
        id: step1
        run: |
          date -Is > output1
          cat output1
          echo "output1=$(cat output1)" >> $GITHUB_OUTPUT
      - name: step2
        id: step2
        run: |
          cat /proc/sys/kernel/random/uuid > output2
          cat output2
          echo "output2=$(cat output2)" >> $GITHUB_OUTPUT
  job2:
    needs: job1
    runs-on: ubuntu-latest
    steps:
      - run: echo ${{ needs.job1.outputs.output1 }}
      - run: echo ${{ needs.job1.outputs.output2 }}
      - run: echo ${{ needs.job1.result }}
```

<img width="397" alt="image"
src="https://user-images.githubusercontent.com/9418365/233313322-903e7ebf-49a7-48e2-8c17-95a4581b3284.png">
<img width="385" alt="image"
src="https://user-images.githubusercontent.com/9418365/233313442-30909135-1711-4b78-a5c6-133fcc79f47c.png">



</details>

---------

Co-authored-by: Giteabot <teabot@gitea.io>

go.mod

@@ -3,7 +3,7 @@ module code.gitea.io/gitea
 go 1.19
 
 require (
-	code.gitea.io/actions-proto-go v0.2.0
+	code.gitea.io/actions-proto-go v0.2.1
 	code.gitea.io/gitea-vet v0.2.2
 	code.gitea.io/sdk/gitea v0.15.1
 	codeberg.org/gusted/mcaptcha v0.0.0-20220723083913-4f3072e1d570