fix: use os agnostic action path to run script (#12)

Author: meeroslav

action.yml

@@ -31,7 +31,7 @@ runs:
     - name: Set base and head SHAs used for nx affected
       id: setSHAs
       shell: bash
-      run: node ${{ github.action_path }}/dist/index.js ${{ github.token }} ${{ inputs.main-branch-name }} ${{ inputs.error-on-no-successful-workflow }} ${{ inputs.last-successful-event }} ${{ inputs.workflow-id }}
+      run: node $GITHUB_ACTION_PATH/dist/index.js ${{ github.token }} ${{ inputs.main-branch-name }} ${{ inputs.error-on-no-successful-workflow }} ${{ inputs.last-successful-event }} ${{ inputs.workflow-id }}
 
     - name: Log base and head SHAs used for nx affected
       shell: bash

package-lock.json

@@ -1,6 +1,6 @@
 {
   "private": true,
-  "version": "2.1.2",
+  "version": "2.1.3",
   "license": "MIT",
   "description": "This package.json is here purely to control the version of the Action, in combination with https://github.com/JamesHenry/publish-shell-action",
   "scripts": {