Revert "fix(tests): remove custom workers"

This reverts commit 40f8946.

Author: rubenfonseca

.github/actionlint.yaml

@@ -0,0 +1,5 @@
+self-hosted-runner:
+  labels:
+    - aws-lambda-powertools_ubuntu-latest_4-core
+    - aws-lambda-powertools_ubuntu-latest_8-core
+    - aws-lambda-powertools_ubuntu-latest_16-core

.github/workflows/publish_v2_layer.yml

@@ -32,7 +32,7 @@ jobs:
   build-layer:
     permissions:
       contents: read
-    runs-on: ubuntu-latest
+    runs-on: aws-lambda-powertools_ubuntu-latest_8-core
     defaults:
       run:
         working-directory: ./layer

.github/workflows/release.yml

@@ -49,7 +49,7 @@ on:
 jobs:
   release:
     environment: release
-    runs-on: ubuntu-latest
+    runs-on: aws-lambda-powertools_ubuntu-latest_4-core
     permissions:
       contents: write
     outputs:

.github/workflows/run-e2e-tests.yml

@@ -21,7 +21,7 @@ env:
 
 jobs:
   run:
-    runs-on: ubuntu-latest
+    runs-on: aws-lambda-powertools_ubuntu-latest_8-core
     permissions:
       id-token: write # needed to request JWT with GitHub's OIDC Token endpoint. docs: https://bit.ly/3MNgQO9
       contents: read