chore: fixed escape character issue in regular expressions (#765)

Co-authored-by: Bharath KKB <bharathkrishnakb@gmail.com>

Author: amrkk123

modules/mysql/metadata.display.yaml

@@ -265,7 +265,7 @@ spec:
             email:
               name: email
               title: Email
-              regexValidation: ^([a-zA-Z][a-zA-Z0-9_]{0,15}|[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,})$
+              regexValidation: "^([a-zA-Z][a-zA-Z0-9_]{0,15}|[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+.[a-zA-Z]{2,})$"
               validation: Must be a valid email address or a Google service account email.
             type:
               name: type
@@ -306,7 +306,7 @@ spec:
               name: private_network
               title: private_network
               subtext: The VPC network used to enable private IP access to the Cloud SQL instance. Cannot be unset once configured.
-              regexValidation: ^(?:http(?:s)?://.+/)?projects/((?:(?:[-a-z0-9]{1,63}\\.)*(?:[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?):)?(?:[0-9]{1,19}|(?:[a-z0-9](?:[-a-z0-9]{0,61}[a-z0-9])?)))/global/networks/((?:[a-z](?:[-a-z0-9]*[a-z0-9])?))$
+              regexValidation: "^(?:http(?:s)?://.+/)?projects/((?:(?:[-a-z0-9]{1,63}.)*(?:[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?):)?(?:[0-9]{1,19}|(?:[a-z0-9](?:[-a-z0-9]{0,61}[a-z0-9])?)))/global/networks/((?:[a-z](?:[-a-z0-9]*[a-z0-9])?))$"
               validation: Invalid format. Expected a valid Google Cloud network resource name, e.g. projects/{project}/global/networks/{network}.
             ssl_mode:
               name: ssl_mode
@@ -325,7 +325,7 @@ spec:
                 value:
                   name: value
                   title: Value
-                  regexValidation: ^((25[0-5]|2[0-4]\d|1\d{2}|[1-9]\d|\d)\.){3}(25[0-5]|2[0-4]\d|1\d{2}|[1-9]\d|\d)\/(3[0-2]|[1-2]\d|\d)$
+                  regexValidation: "^((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])\\.){3}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])\\/(3[0-2]|[1-2][0-9]|[0-9])$"
                   validation: Must be a valid IPv4 address in CIDR format.
           level: 1
         maintenance_window_day:

modules/postgresql/metadata.display.yaml

@@ -235,7 +235,7 @@ spec:
             email:
               name: email
               title: Email
-              regexValidation: ^([a-zA-Z][a-zA-Z0-9_]{0,15}|[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,})$
+              regexValidation: "^([a-zA-Z][a-zA-Z0-9_]{0,15}|[a-z0-9._%+-]+@[a-z0-9.-]+.[a-z]{2,})$"
               validation: Must be a valid email address or a Google service account email.
             type:
               name: type
@@ -276,7 +276,7 @@ spec:
               name: private_network
               title: private_network
               subtext: The VPC network used to enable private IP access to the Cloud SQL instance. Cannot be unset once configured.
-              regexValidation: ^(?:http(?:s)?://.+/)?projects/((?:(?:[-a-z0-9]{1,63}\\.)*(?:[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?):)?(?:[0-9]{1,19}|(?:[a-z0-9](?:[-a-z0-9]{0,61}[a-z0-9])?)))/global/networks/((?:[a-z](?:[-a-z0-9]*[a-z0-9])?))$
+              regexValidation: "^(?:http(?:s)?://.+/)?projects/((?:(?:[-a-z0-9]{1,63}.)*(?:[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?):)?(?:[0-9]{1,19}|(?:[a-z0-9](?:[-a-z0-9]{0,61}[a-z0-9])?)))/global/networks/((?:[a-z](?:[-a-z0-9]*[a-z0-9])?))$"
               validation: Invalid format. Expected a valid Google Cloud network resource name, e.g. projects/{project}/global/networks/{network}.
             ssl_mode:
               name: ssl_mode
@@ -294,8 +294,6 @@ spec:
               enumValueLabels:
                 - label: GOOGLE_MANAGED_INTERNAL_CA
                   value: GOOGLE_MANAGED_INTERNAL_CA
-                - label: GOOGLE_MANAGED_INTERNAL_CA
-                  value: GOOGLE_MANAGED_INTERNAL_CA
           level: 1
         maintenance_window_day:
           name: maintenance_window_day