correct docker containers

Author: swhitty

.github/workflows/build.yml

@@ -72,7 +72,7 @@ jobs:
 
   linux_swift_5_10:
     runs-on: ubuntu-latest
-    container: swift:5.8
+    container: swift:5.10
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -85,7 +85,7 @@ jobs:
 
   linux_swift_5_9:
     runs-on: ubuntu-latest
-    container: swift:5.8
+    container: swift:5.9
     steps:
       - name: Checkout
         uses: actions/checkout@v4