Updating workflows to use Ubuntu-24.04 & avoid EOL

Author: weaverryan

.github/workflows/callable-flex-cleanup.yml

@@ -6,7 +6,7 @@ on:
 jobs:
     flex-cleanup:
         name: Cleanup Flex testing endpoint
-        runs-on: Ubuntu-20.04
+        runs-on: Ubuntu-24.04
 
         steps:
             -

.github/workflows/callable-flex-update-archived.yml

@@ -11,7 +11,7 @@ on:
 jobs:
     flex-update-archived:
         name: Update Flex Archives
-        runs-on: Ubuntu-20.04
+        runs-on: Ubuntu-24.04
 
         steps:
             -

.github/workflows/callable-flex-update.yml

@@ -17,7 +17,7 @@ on:
 jobs:
     flex-update:
         name: Update Flex endpoint
-        runs-on: Ubuntu-20.04
+        runs-on: Ubuntu-24.04
 
         steps:
             -