pin macos test runners to macos-12 (#1195)

Author: mikealfare

.github/scripts/integration-test-matrix.js

@@ -44,7 +44,7 @@ module.exports = ({ context }) => {
 
             if (labels.includes("test macos") || testAllLabel) {
               include.push({
-                os: "macos-latest",
+                os: "macos-12",
                 adapter,
                 "python-version": pythonVersion,
               });
@@ -78,7 +78,7 @@ module.exports = ({ context }) => {
   // additionally include runs for all adapters, on macos and windows,
   // but only for the default python version
   for (const adapter of supportedAdapters) {
-    for (const operatingSystem of ["windows-latest", "macos-latest"]) {
+    for (const operatingSystem of ["windows-latest", "macos-12"]) {
       include.push({
         os: operatingSystem,
         adapter: adapter,

.github/workflows/main.yml

@@ -173,7 +173,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, macos-12, windows-latest]
         python-version: ['3.8', '3.9', '3.10', '3.11']
 
     steps: