Update CAPAS (cluster-api-provider-aws-snow) from v0.2.9 to v0.3.1 (#5245)

Bump CAPAS to v0.3.1 which updates the Cluster API contract from
v1beta1 to v1beta2. Changes include:
- Update GIT_TAG to v0.3.1
- Update version badge in README
- Add CAPAS contract entry (major: 0, minor: 3) to metadata.yaml
- Update infrastructure-components.yaml manifests

Author: yxinchen

projects/aws/cluster-api-provider-aws-snow/GIT_TAG

@@ -1 +1 @@
-v0.2.9
+v0.3.1

projects/aws/cluster-api-provider-aws-snow/README.md

@@ -1,5 +1,5 @@
 ## **CAPAS**
-![Version](https://img.shields.io/badge/version-v0.2.9-blue)
+![Version](https://img.shields.io/badge/version-v0.3.1-blue)
 ![Build Status](https://codebuild.us-west-2.amazonaws.com/badges?uuid=eyJlbmNyeXB0ZWREYXRhIjoiOTZFc2lQejUvTDFxRWtWUVFCOWRITGtHcmRPUUtWR3FVb3d2aHV6eHM3Q0Q1c1RBMzlzZFpwNHhOMlZGNjFaeFRmU0dFNVk0bWZRTnI0T0s2a3poeEdNPSIsIml2UGFyYW1ldGVyU3BlYyI6InFKOTlCeVppcmI0dEtzWWwiLCJtYXRlcmlhbFNldFNlcmlhbCI6MX0%3D&branch=main)
 
 *Note: We are not currently building the Snow provider nor are we generating the manifests. For now we are checking in