feat(codebuild): add support for new codebuild images (#20992)

Fixes #20960.

Adds support for the new CodeBuild images `Linux Standard 6.0` and `Amazon Linux 4.0`.

----

### All Submissions:

* [x] Have you followed the guidelines in our [Contributing guide?](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md)

### Adding new Unconventional Dependencies:

* [ ] This PR adds new unconventional dependencies following the process described [here](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md/#adding-new-unconventional-dependencies)

### New Features

* [x] Have you added the new feature to an [integration test](https://github.com/aws/aws-cdk/blob/main/INTEGRATION_TESTS.md)?
	* [x] Did you use `yarn integ` to deploy the infrastructure and generate the snapshot (i.e. `yarn integ` without `--dry-run`)?

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

packages/@aws-cdk/aws-codebuild/lib/project.ts

@@ -1690,11 +1690,15 @@ export class LinuxBuildImage implements IBuildImage {
   public static readonly STANDARD_4_0 = LinuxBuildImage.codeBuildImage('aws/codebuild/standard:4.0');
   /** The `aws/codebuild/standard:5.0` build image. */
   public static readonly STANDARD_5_0 = LinuxBuildImage.codeBuildImage('aws/codebuild/standard:5.0');
+  /** The `aws/codebuild/standard:6.0` build image. */
+  public static readonly STANDARD_6_0 = LinuxBuildImage.codeBuildImage('aws/codebuild/standard:6.0');
 
   public static readonly AMAZON_LINUX_2 = LinuxBuildImage.codeBuildImage('aws/codebuild/amazonlinux2-x86_64-standard:1.0');
   public static readonly AMAZON_LINUX_2_2 = LinuxBuildImage.codeBuildImage('aws/codebuild/amazonlinux2-x86_64-standard:2.0');
   /** The Amazon Linux 2 x86_64 standard image, version `3.0`. */
   public static readonly AMAZON_LINUX_2_3 = LinuxBuildImage.codeBuildImage('aws/codebuild/amazonlinux2-x86_64-standard:3.0');
+  /** The Amazon Linux 2 x86_64 standard image, version `4.0`. */
+  public static readonly AMAZON_LINUX_2_4 = LinuxBuildImage.codeBuildImage('aws/codebuild/amazonlinux2-x86_64-standard:4.0');
 
   /** @deprecated Use LinuxArmBuildImage.AMAZON_LINUX_2_STANDARD_1_0 instead. */
   public static readonly AMAZON_LINUX_2_ARM = LinuxArmBuildImage.AMAZON_LINUX_2_STANDARD_1_0;

packages/@aws-cdk/aws-codebuild/test/project.test.ts

@@ -791,6 +791,33 @@ describe('Environment', () => {
       }),
     });
   });
+
+  test.each([
+    ['Standard 6.0', codebuild.LinuxBuildImage.STANDARD_6_0, 'aws/codebuild/standard:6.0'],
+    ['Amazon Linux 4.0', codebuild.LinuxBuildImage.AMAZON_LINUX_2_4, 'aws/codebuild/amazonlinux2-x86_64-standard:4.0'],
+  ])('has build image for %s', (_, buildImage, expected) => {
+    // GIVEN
+    const stack = new cdk.Stack();
+    const bucket = s3.Bucket.fromBucketName(stack, 'Bucket', 'my-bucket'); // (stack, 'Bucket');
+
+    // WHEN
+    new codebuild.Project(stack, 'Project', {
+      source: codebuild.Source.s3({
+        bucket,
+        path: 'path',
+      }),
+      environment: {
+        buildImage: buildImage,
+      },
+    });
+
+    // THEN
+    Template.fromStack(stack).hasResourceProperties('AWS::CodeBuild::Project', {
+      Environment: Match.objectLike({
+        Image: expected,
+      }),
+    });
+  });
 });
 
 describe('EnvironmentVariables', () => {