Revert the odbc build platform to macos 10.15

Signed-off-by: chloe-zh <[email protected]>

Author: chloe-zh

.github/workflows/sql-odbc-main.yml

@@ -11,7 +11,7 @@ env:
 
 jobs:    
   build-mac:
-    runs-on: macos-latest
+    runs-on: macos-10.15
     defaults:
       run:
         working-directory: sql-odbc

.github/workflows/sql-odbc-release-workflow.yml

@@ -16,7 +16,7 @@ env:
 
 jobs:
   build-mac:
-    runs-on: macos-latest
+    runs-on: macos-10.15
     defaults:
       run:
         working-directory: sql-odbc