Add support for parameter manager parameter version datasource `googl…

…e_parameter_manager_parameter_version` (#12653) (#21055)

[upstream:79f6fab37290e2c1e0e159d89743fd5739078140]

Signed-off-by: Modular Magician <magic-modules@google.com>

.changelog/12653.txt

@@ -0,0 +1,3 @@
+```release-note:new-datasource
+`google_parameter_manager_parameter_version`
+```

google/services/parametermanager/data_source_parameter_manager_parameter_version.go

@@ -0,0 +1,3 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+package parametermanager

google/services/parametermanager/data_source_parameter_manager_parameter_version_test.go

@@ -0,0 +1,3 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+package parametermanager_test

website/docs/d/parameter_manager_parameter_version.html.markdown

@@ -0,0 +1,48 @@
+---
+subcategory: "Parameter Manager"
+description: |-
+  Get information about an Parameter Manager Parameter Version
+---
+
+# google_parameter_manager_parameter_version
+
+Get the value and metadata from a Parameter Manager Parameter version. For more information see the [official documentation](https://cloud.google.com/secret-manager/parameter-manager/docs/overview)  and [API](https://cloud.google.com/secret-manager/parameter-manager/docs/reference/rest/v1/projects.locations.parameters.versions).
+
+~> **Warning:** This datasource is in beta, and should be used with the terraform-provider-google-beta provider.
+See [Provider Versions](https://terraform.io/docs/providers/google/guides/provider_versions.html) for more details on beta datasources.
+
+## Example Usage
+
+```hcl
+data "google_parameter_manager_parameter_version" "basic" {
+  parameter            = "test-parameter"
+  parameter_version_id = "test-parameter-version"
+}
+```
+
+## Argument Reference
+
+The following arguments are supported:
+
+* `project` - (Optional) The project for retrieving the Parameter Version. If it's not specified, 
+    the provider project will be used.
+
+* `parameter` - (Required) The parameter for obtaining the Parameter Version.
+    This can be either the reference of the parameter as in `projects/{{project}}/locations/global/parameters/{{parameter_id}}` or only the name of the parameter as in `{{parameter_id}}`.
+
+* `parameter_version_id` - (Required) The version of the parameter to get.
+
+## Attributes Reference
+
+The following attributes are exported:
+
+* `parameter_data` - The parameter data.
+
+* `name` - The resource name of the ParameterVersion. Format:
+  `projects/{{project}}/locations/global/parameters/{{parameter_id}}/versions/{{parameter_version_id}}`
+
+* `create_time` - The time at which the Parameter Version was created.
+
+* `update_time` - The time at which the Parameter Version was last updated.
+
+* `disabled` -  The current state of the Parameter Version.