Update initialization script

This PR removes event restrictions from non-NVIDIA orgs since they run exclusively in the cloud.

These changes have been tested with the following commands:

```sh
GITHUB_REPOSITORY_OWNER=rapidsai GITHUB_EVENT_NAME=pull_request ./scripts/helpers/initialize_runner.sh

GITHUB_REPOSITORY_OWNER=rapidsai GITHUB_EVENT_NAME=pull_request_target ./scripts/helpers/initialize_runner.sh

GITHUB_REPOSITORY_OWNER=rapidsai GITHUB_EVENT_NAME=push ./scripts/helpers/initialize_runner.sh

GITHUB_REPOSITORY_OWNER=NERSC GITHUB_EVENT_NAME=pull_request ./scripts/helpers/initialize_runner.sh

GITHUB_REPOSITORY_OWNER=NERSC GITHUB_EVENT_NAME=push ./scripts/helpers/initialize_runner.sh
```

scripts/helpers/initialize_runner.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+set -eu
+
+# these strings are case-sensitive and should match the case of the GH org
+CLOUD_ONLY_ORGS=(
+  "dask-contrib"
+  "dask"
+  "NERSC"
+  "numba"
+)
+
+for ORG in "${CLOUD_ONLY_ORGS[@]}"; do
+  if [ "${GITHUB_REPOSITORY_OWNER}" = "${ORG}" ] ; then
+    echo "Runner initialized"
+    exit 0
+  fi
+done
+
+BLOCKED_EVENTS=(
+  "pull_request"
+  "pull_request_target"
+)
+
+for EVENT in "${BLOCKED_EVENTS[@]}"; do
+  if [ "${GITHUB_EVENT_NAME}" = "${EVENT}" ] ; then
+    echo "Workflows triggered by \"${GITHUB_EVENT_NAME}\" events are not allowed to run on self-hosted runners."
+    exit 1
+  fi
+done
+
+echo "Runner initialized"
+exit 0

scripts/helpers/runner.sh

@@ -8,7 +8,7 @@ if [ ! -f "/jitconfig" ]; then
 fi
 
 ACTIONS_RUNNER_INPUT_JITCONFIG="$(cat /jitconfig)"
-ACTIONS_RUNNER_HOOK_JOB_STARTED=/home/runner/.check_event_type.sh
+ACTIONS_RUNNER_HOOK_JOB_STARTED=/home/runner/.initialize_runner.sh
 PARALLEL_LEVEL=$(nproc)
 export ACTIONS_RUNNER_INPUT_JITCONFIG ACTIONS_RUNNER_HOOK_JOB_STARTED PARALLEL_LEVEL
 

scripts/installers/runner.sh

@@ -20,7 +20,7 @@ rm -rf ./actions-runner.tar.gz
 
 # Copy scripts and services
 sudo cp "${NV_HELPER_SCRIPTS}/runner.sh" /runner.sh
-sudo cp "${NV_HELPER_SCRIPTS}/check_event_type.sh" /home/runner/.check_event_type.sh
+sudo cp "${NV_HELPER_SCRIPTS}/initialize_runner.sh" /home/runner/.initialize_runner.sh
 
 _UID=$(id -u)
 _GID=$(id -g)