ci: allow passing specific sha in release action (#11109)

### Description

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  ✍️ Write a short summary of your work.
  If necessary, include relevant screenshots.
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Allows for passing in a commit sha to the release action to run a
point-in-time release.

### Testing Instructions

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  Give a quick description of steps to test your changes.
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Author: zacowan

.github/workflows/turborepo-release.yml

@@ -52,12 +52,18 @@ on:
         required: false
         type: string
         default: ""
-
+      sha:
+        description: "Override the SHA to use for the release. Should rarely be used, usually only for debugging."
+        required: false
+        type: string
+        default: ""
 jobs:
   stage:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+        with:
+          ref: ${{ inputs.sha || github.sha }}
       - uses: ./.github/actions/setup-node
         with:
           enable-corepack: false