Support configuring AWS configuration values on SpinApp for SQS triggered apps

[kate-goldenring]

The Spin SQS Trigger expects the following AWS configuration variables to be set in the environment at start up:

• AWS_DEFAULT_REGION
• AWS_ACCESS_KEY_ID
• AWS_SECRET_ACCESS_KEY
• AWS_SESSION_TOKEN

We could support configuring these by updating the SpinApp CRD to contain an sqs section:

spec:
  createDeployment: true
  deploymentConfig:
    runtimeClassName: wasmtime-spin-v2
    sqs:
      - aws_default_region: us-west-2
      - aws_secret_access_key:
            valueFrom:
              secretKeyRef:
                name: "my-super-secret"
                key: "turso-token"

Alternatively, the trigger could be updated to get these values from runtime config instead: fermyon/spin-trigger-sqs#52

[kate-goldenring]

Alternatively: spinkube/skips#9