Support reporting to a PR from another repository

Fixes #25

action.yml

@@ -9,9 +9,13 @@ inputs:
     required: true
     default: 'reports'
   sha:
-    description: 'SHA of the commit tha triggered the tests'
+    description: 'SHA of the commit that triggered the tests'
     required: false
     default: "${{ github.sha }}"
+  repository:
+    description: 'Repository of the commit or pull request that triggered the tests'
+    required: false
+    default: "${{ github.repository }}"
   pull_request_id:
     description: 'ID of the Pull Request'
     required: false
@@ -34,8 +38,13 @@ runs:
   steps:
     - shell: bash
       run: |
-            export OWNER="$(echo "${{ github.repository }}" | awk -F / '{print $1}' | sed -e "s/:refs//")"
-            export REPO="$(echo "${{ github.repository }}" | awk -F / '{print $2}' | sed -e "s/:refs//")"
+            if [[ "${{ inputs.repository }}" =~ "/" ]]; then 
+              export OWNER="$(echo "${{ inputs.repository }}" | awk -F / '{print $1}' | sed -e "s/:refs//")"
+              export REPO="$(echo "${{ inputs.repository }}" | awk -F / '{print $2}' | sed -e "s/:refs//")"
+            else
+              export OWNER="$(echo "${{ github.repository }}" | awk -F / '{print $1}' | sed -e "s/:refs//")"
+              export REPO="$(echo "${{ inputs.repository }}" | sed -e "s/:refs//")"
+            fi
             echo "REPOSITORY_OWNER=$OWNER" >> $GITHUB_ENV
             echo "REPOSITORY_NAME=$REPO" >> $GITHUB_ENV
     - shell: bash