Switch to nightlies and re-disable ARM testing

Author: LukasAud

.github/workflows/ci.yml

@@ -15,5 +15,5 @@ jobs:
     needs: Spec
     uses: "puppetlabs/cat-github-actions/.github/workflows/module_acceptance.yml@main"
     with:
-      flags: "--latest-agent"
+      flags: "--nightly --exclude-platforms '[\"Ubuntu-22.04-arm\", \"RedHat-9-arm\"]'"
     secrets: "inherit"

.github/workflows/nightly.yml

@@ -13,4 +13,6 @@ jobs:
   Acceptance:
     needs: Spec
     uses: "puppetlabs/cat-github-actions/.github/workflows/module_acceptance.yml@main"
+    with:
+      flags: "--nightly --exclude-platforms '[\"Ubuntu-22.04-arm\", \"RedHat-9-arm\"]'"
     secrets: "inherit"