Chore: [AEA-0000] - fix to deploy MTLS (#2987)

## Summary

- 🤖 Operational or Infrastructure Change

### Details

Correct comma to colon

Author: tstephen-nhs

.github/scripts/deploy_api.sh

@@ -136,7 +136,7 @@ if [[ "${ENABLE_MUTUAL_TLS}" == "true" ]]; then
             --arg secretCert "${client_cert}" \
             --arg kid "${PROXYGEN_KID}" \
             --arg proxygenSecretName "${proxygen_private_key_arn}" \
-            '{apiName: $apiName, environment: $environment, secretName: $secretName, secretKey: $secretKey, secretCert: $secretCert, kid, $kid, proxygenSecretName: $proxygenSecretName}' > payload.json
+            '{apiName: $apiName, environment: $environment, secretName: $secretName, secretKey: $secretKey, secretCert: $secretCert, kid: $kid, proxygenSecretName: $proxygenSecretName}' > payload.json
 
         aws lambda invoke --function-name "${put_secret_lambda}" --cli-binary-format raw-in-base64-out --payload file://payload.json out.txt > response.json
         if eval "cat response.json | jq -e '.FunctionError' >/dev/null"; then