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: nathannaveen <[email protected]>

Change-Id: Iade3b8ea1fb01a0635fefe4870c28c80ad0586d7
GitHub-Last-Rev: c96e84f
GitHub-Pull-Request: #2277
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/410474
Reviewed-by: Jamal Carvalho <[email protected]>
Reviewed-by: Hyang-Ah Hana Kim <[email protected]>

Author: nathannaveen

.github/workflows/wiki.yml

@@ -8,10 +8,15 @@ on:
       - 'docs/**'
 
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
+permissions:
+  contents: read
+
 jobs:
   # This workflow contains a single job called "build"
   publish:
     # The type of runner that the job will run on
+    permissions:
+      contents: write  # for Git to git push
     runs-on: ubuntu-latest
 
     # Steps represent a sequence of tasks that will be executed as part of the job