Allow Running Container as Runner Host User (#600)

- Added `runAsHostUser` to allow running the container as the same user as the host system. This fixes most permissions issues on self-hosted runners.
- Perform android sdk setup during entrypoint.sh to ensure it has root permissions if the user switches to a non-root user
- Automatically detect android sdk target version if parameters are not already provided to configure the sdk
- Generate a new uuid for machineID to ensure separate containers are unique to reduce license activation errors
- Add exponential retry strategy for Ubuntu license activations

action.yml

@@ -101,6 +101,12 @@ inputs:
     required: false
     default: ''
     description: '[CloudRunner] GitHub owner name or organization/team name'
+  runAsHostUser:
+    required: false
+    default: 'false'
+    description:
+      'Whether to run as a user that matches the host system or the default root container user. Only applicable to
+      Linux hosts and containers. This is useful for fixing permission errors on Self-Hosted runners.'
   chownFilesTo:
     required: false
     default: ''