gh-125560: Pin JIT CI to ubuntu-22.04 (#125564)

Author: savannahostrowski

.github/workflows/jit.yml

@@ -28,7 +28,7 @@ concurrency:
 jobs:
   interpreter:
     name: Interpreter (Debug)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     timeout-minutes: 90
     steps:
       - uses: actions/checkout@v4
@@ -85,19 +85,19 @@ jobs:
             compiler: clang
           - target: x86_64-unknown-linux-gnu/gcc
             architecture: x86_64
-            runner: ubuntu-latest
+            runner: ubuntu-22.04
             compiler: gcc
           - target: x86_64-unknown-linux-gnu/clang
             architecture: x86_64
-            runner: ubuntu-latest
+            runner: ubuntu-22.04
             compiler: clang
           - target: aarch64-unknown-linux-gnu/gcc
             architecture: aarch64
-            runner: ubuntu-latest
+            runner: ubuntu-22.04
             compiler: gcc
           - target: aarch64-unknown-linux-gnu/clang
             architecture: aarch64
-            runner: ubuntu-latest
+            runner: ubuntu-22.04
             compiler: clang
     env:
       CC: ${{ matrix.compiler }}
@@ -169,7 +169,7 @@ jobs:
   jit-with-disabled-gil:
     name: Free-Threaded (Debug)
     needs: interpreter
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
         llvm: