Remove the trigger-react-native-release to use the GHA workflow_dispatch UI (#44898)

Summary:
This change removes the need for the trigger-react-native-release.js script.
Thanks to the migration to Github Actions, we can now leverage the GHA workflow UI to trigger a Prepare Release job that creates a github tag that will spin a new release.

The pro of this approach are:
- less code to maintain: instead of a complex trigger release scripts, we only have to maintain two very straightforward scripts for the CI
- easier to trigger a release: instead of running a script, we can now just use the GH UI

The `trigger-react-native-release` script was doing the following steps:
- check that we are in the release branch ==> Already implemented in the GHA workflow
- Gets the branch name (not needed) ==> the job will automatically run on the stable branch
- Check for unsent changes (not needed) ==> we are not in a local environment
- get the gh token (not needed) ==> You need to be logged in GH and have write access to the repo
- get the version ==> provided as a parameter
- fails if the tag is already there ==> Functionality added in the workflow
- Parse and validate the version ==> Functionality added to the action prepare-release action + the JS Script
- Compute the npmTag ==> Functionality added to the action prepare-release action + the JS Script
- trigger the release workflow ==> The GH UI does that for us

## Changelog:
[Internal] - Remove the trigger-react-native-release.js

Pull Request resolved: https://github.com/facebook/react-native/pull/44898

Test Plan: Testing in Production!

Reviewed By: cortinico, huntie

Differential Revision: D58461470

Pulled By: cipolleschi

fbshipit-source-id: 32bb0ee91370c9483a29e2ca2e18e24557d5fd53

.github/workflows/create-release.yml

@@ -0,0 +1,48 @@
+name: Create release
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'The version of React Native we want to release. For example 0.75.0-rc.0'
+        required: true
+        type: string
+      is_latest_on_npm:
+        description: 'Whether we want to tag this release as latest on NPM'
+        required: true
+        type: boolean
+        default: false
+      dry_run:
+        description: 'Whether the job should be executed in dry-run mode or not'
+        type: boolean
+        default: false
+
+jobs:
+  prepare_release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4.1.1
+      - name: Check if on stable branch
+        id: check_stable_branch
+        run: |
+          BRANCH="$(git branch --show-current)"
+          PATTERN='^0\.[0-9]+-stable$'
+          if [[ $BRANCH =~ $PATTERN ]]; then
+            echo "On a stable branch"
+            echo "ON_STABLE_BRANCH=true" >> $GITHUB_OUTPUT
+          fi
+      - name: Print output
+        run: echo "ON_STABLE_BRANCH ${{steps.check_stable_branch.outputs.ON_STABLE_BRANCH}}"
+      - name: Check if tag already exists
+        id: check_if_tag_exists
+        run: |
+          TAG="v${{ inputs.version }}"
+          TAG_EXISTS=$(git tag -l "$TAG")
+          if [[ -n "$TAG_EXISTS" ]]; then
+            echo "Version tag already exists!"
+            echo "TAG_EXISTS=true" >> $GITHUB_OUTPUT
+          fi
+      - name: Execute Prepare Release
+        if: ${{ steps.check_stable_branch.outputs.ON_STABLE_BRANCH && !steps.check_if_tag_exists.outputs.TAG_EXISTS }}
+        uses: ./.github/actions/create-release