Fix LLVM CI

Author: LucasSte

.github/workflows/premerge.yaml

@@ -25,10 +25,8 @@ concurrency:
 
 jobs:
   premerge-checks-linux:
-    if: >-
-        false && github.repository_owner == 'llvm' &&
-        (github.event_name != 'pull_request' || github.event.action != 'closed')
-    runs-on: llvm-premerge-linux-runners
+    if: (github.event_name != 'pull_request' || github.event.action != 'closed')
+    runs-on: ubuntu-22.04
     steps:
       - name: Checkout LLVM
         uses: actions/checkout@v4
@@ -83,10 +81,8 @@ jobs:
           ./.ci/monolithic-linux.sh "$(echo ${linux_projects} | tr ' ' ';')" "$(echo ${linux_check_targets})" "$(echo ${linux_runtimes} | tr ' ' ';')" "$(echo ${linux_runtime_check_targets})"
 
   premerge-checks-windows:
-    if: >-
-        false && github.repository_owner == 'llvm' &&
-        (github.event_name != 'pull_request' || github.event.action != 'closed')
-    runs-on: llvm-premerge-windows-runners
+    if: (github.event_name != 'pull_request' || github.event.action != 'closed')
+    runs-on: windows-2022
     defaults:
       run:
         shell: bash
@@ -144,11 +140,7 @@ jobs:
 
   permerge-check-macos:
     runs-on: macos-14
-    if: >-
-      github.repository_owner == 'llvm' &&
-      (startswith(github.ref_name, 'release/') ||
-       startswith(github.base_ref, 'release/')) &&
-      (github.event_name != 'pull_request' || github.event.action != 'closed')
+    if: (github.event_name != 'pull_request' || github.event.action != 'closed')
     steps:
       - name: Checkout LLVM
         uses: actions/checkout@v4