Update CloudFormation schemas to 2026-05-03

Author: kddejong

docs/rules.md

@@ -46,7 +46,7 @@ To include these rules, use the `-e/include-experimental` argument when running
 ## Rules
 (_This documentation is generated by running `cfn-lint --update-documentation`, do not alter this manually_)
 
-The following **307** rules are applied by this linter:
+The following **308** rules are applied by this linter:
 
 | Rule ID  | Title | Description | Config<br />(Name:Type:Default) | Source | Tags |
 | -------- | ----- | ----------- | ---------- | ------ | ---- |
@@ -313,6 +313,7 @@ The following **307** rules are applied by this linter:
 | [W1040<a name="W1040"></a>](../src/cfnlint/rules/functions/ToJsonStringResolved.py) | Validate the values that come from a Fn::ToJsonString function | Resolve the Fn::ToJsonString and then validate the values against the schema |  | [Source](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-ToJsonString.html) | `functions`,`tojsonstring` |
 | [W1051<a name="W1051"></a>](../src/cfnlint/rules/functions/DynamicReferenceSecretsManagerArn.py) | Validate dynamic references to secrets manager are not used when a secrets manager ARN was expected | Certain properties expect a secret manager ARN. This rule validates if you may be accidently using a secret in place of the ARN |  | [Source](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/dynamic-references.html#dynamic-references-secretsmanager) | `functions`,`dynamic reference` |
 | [W1053<a name="W1053"></a>](../src/cfnlint/rules/functions/DynamicReferenceSpaces.py) | Dynamic references should not contain spaces | Dynamic references with spaces between '{{' and 'resolve' will not be resolved by CloudFormation and will be treated as a literal string |  | [Source](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/dynamic-references.html) | `functions`,`dynamic reference` |
+| [W1054<a name="W1054"></a>](../src/cfnlint/rules/functions/RawPseudoParameter.py) | Pseudo-parameter string found without Ref | A pseudo-parameter such as 'AWS::NoValue' or 'AWS::Region' was used as a plain string value. In most cases you want 'Ref: AWS::...' instead of the raw string. |  | [Source](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/pseudo-parameter-reference.html) | `functions`,`pseudo-parameter` |
 | [W1100<a name="W1100"></a>](../src/cfnlint/rules/aws_cli/UsingMerge.py) | Validate if the template is using YAML merge | The CloudFormation service does not support YAML anchors, aliases, or merging. This rule validates if the merge capability is being used |  | [Source](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/template-formats.html) | `yaml` |
 | [W2001<a name="W2001"></a>](../src/cfnlint/rules/parameters/Used.py) | Check if Parameters are Used | Making sure the parameters defined are used |  | [Source](https://github.com/aws-cloudformation/cfn-lint) | `parameters` |
 | [W2002<a name="W2002"></a>](../src/cfnlint/rules/parameters/UnsupportedParameterType.py) | Parameter type is not officially supported by CloudFormation | CloudFormation accepts any AWS::SSM::Parameter::Value<> or List<> pattern, but only validates specific types. Using unsupported types may work but CloudFormation will not validate the parameter values. |  | [Source](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/cloudformation-supplied-parameter-types.html) | `parameters` |