Fixing up docs build (#744)

Author: JohnPreston

.cicd/buildspec_docs.yml

@@ -2,7 +2,7 @@ version: 0.2
 
 env:
   variables:
-    PY_VERSION: 3.8
+    PY_VERSION: 3.10
   git-credential-helper: yes
 
 phases:

.cicd/codebuild_docs.yml

@@ -6,6 +6,10 @@ Metadata:
   Author: https://github.com/johnpreston
 
 Parameters:
+  CodebuildImage:
+    Type: String
+    Default: aws/codebuild/standard:6.0
+
   RepositoryOrganization:
     Type: String
 
@@ -117,12 +121,13 @@ Resources:
         Type: NO_ARTIFACTS
       Environment:
         ComputeType: BUILD_GENERAL1_SMALL
-        Image: aws/codebuild/standard:3.0
+        Image:
+          Ref: CodebuildImage
         Type: LINUX_CONTAINER
         EnvironmentVariables:
           - Name: PY_VERSION
             Type: PLAINTEXT
-            Value: 3.8
+            Value: 3.10
           - Name: DISTRIBUTION_ID
             Type: PLAINTEXT
             Value: !Ref NightlyDocsDistribution