feature: add update-environment input (#411)

This option allows to specify if the action shall update environment variables (default) or not.
This allows to use the setup-python action in a composite action without side effect (except downloading/installing python if version is missing).

package.json

@@ -24,7 +24,7 @@
   "license": "MIT",
   "dependencies": {
     "@actions/cache": "^2.0.2",
-    "@actions/core": "^1.2.3",
+    "@actions/core": "^1.7.0",
     "@actions/exec": "^1.1.0",
     "@actions/glob": "^0.2.0",
     "@actions/io": "^1.0.2",