feat(create-and-merge-pull-request): sign commit

Signed-off-by: Emilien Escalle <[email protected]>

Author: neilime

.github/workflows/__main-ci.yml

@@ -1,6 +1,7 @@
+---
 name: Internal - Main - Continuous Integration
 
-on:
+on: # yamllint disable-line rule:truthy
   push:
     branches: [main]
     tags: ["*"]

actions/create-and-merge-pull-request/action.yml

@@ -45,6 +45,7 @@ runs:
       with:
         token: ${{ inputs.github-token }}
         signoff: true
+        sign-commits: true
         base: ${{ github.event.repository.default_branch }}
         delete-branch: true
         branch: ${{ inputs.branch }}

actions/create-or-update-comment/README.md

@@ -24,7 +24,7 @@ Action to create or update comment in pull request or issue
 <!-- start contents -->
 <!-- end contents -->
 
-Set permissions to wrtie issues and pull-requests. This is required to write the comment on the PR.
+Set permissions to write issues and pull-requests. This is required to write the comment on the PR.
 
 ```yaml
 permissions: