Revert "Change GH to macos-latest"

This reverts commit 733940e.

macos-13 is required for Java 8.

Author: aherbert

.github/workflows/maven.yml

@@ -39,7 +39,7 @@ jobs:
       max-parallel: 20
       fail-fast: false # Run all the versions, but show overall status as failed if one fails
       matrix:
-        os: [ ubuntu-latest, macos-latest, windows-latest ]
+        os: [ ubuntu-latest, macos-13, windows-latest ]
         java: [ 8, 11, 17 ]
 
     steps:

.github/workflows/maven_legacy.yml

@@ -35,7 +35,7 @@ jobs:
       max-parallel: 20
       fail-fast: false # Run all the versions, but show overall status as failed if one fails
       matrix:
-        os: [ ubuntu-latest, macos-latest, windows-latest ]
+        os: [ ubuntu-latest, macos-13, windows-latest ]
         java: [ 8, 11, 17 ]
 
     steps: