Fix wrong version used for cache key

As the hash is always included, this has only cosmetic impact

action.yml

@@ -35,15 +35,19 @@ runs:
   steps:
 
     - name: Identify hash from which alr was built
+      # Identifies the version and hash to be used for the cache key
       id: find-hash
       shell: bash
       run: |
         if [[ "${{ inputs.branch }}" != "" ]]; then
           echo "hash=$(git ls-remote --heads https://github.com/alire-project/alire ${{ inputs.branch }} | cut -f1)" >> $GITHUB_OUTPUT
+          echo "version=${{ inputs.branch }}" >> $GITHUB_OUTPUT
         elif [[ "${{ inputs.version }}" != "nightly" ]]; then
           echo "hash=$(git ls-remote --tags https://github.com/alire-project/alire v${{ inputs.version }} | cut -f1)" >> $GITHUB_OUTPUT
+          echo "version=${{ inputs.version }}" >> $GITHUB_OUTPUT
         else
           echo "hash=$(git ls-remote --tags https://github.com/alire-project/alire ${{ inputs.version }} | cut -f1)" >> $GITHUB_OUTPUT
+          echo "version=${{ inputs.version }}" >> $GITHUB_OUTPUT
         fi
 
     - name: Reuse cached installation
@@ -55,7 +59,7 @@ runs:
           ~/.cache/alire
           ~/.config/alire
           ./alire_install
-        key: alr[${{ inputs.version }}][${{ inputs.toolchain }}][${{ runner.os }}][${{ steps.find-hash.outputs.hash }}]
+        key: alr[${{ steps.find-hash.outputs.version }}][${{ inputs.toolchain }}][${{ runner.os }}][${{ steps.find-hash.outputs.hash }}]
         # .cache contains msys64 install on Windows
         # .config contains the toolchain at the default location, besides index config
         # ./alire_install contains alr itself