set actions_results_url to the normal default for actions runner (unless overridden)

Co-authored-by: Copilot <copilot@github.com>

Author: Crow-Control

apps/actions-runner/Dockerfile

@@ -12,6 +12,7 @@ ENV RUNNER_MANUALLY_TRAP_SIG=1 \
     HOMEBREW_NO_ENV_HINTS=1 \
     HOMEBREW_NO_INSTALL_CLEANUP=1 \
     RUNNER_ALLOW_RUNASROOT="1" \
+    ACTIONS_RESULTS_URL="https://results-receiver.actions.githubusercontent.com" \
     GOPATH="/tmp/go"