Update - Media CDN CORS Limit to 25

[msampathkumar]

As of 21 Feb 2023, CORS(Access-Control-Allow-Origin) limit for Media CDN is updated to 25.

Docs Link: https://cloud.google.com/media-cdn/docs/reference/rest/v1/projects.locations.edgeCacheServices#corspolicy

Fixes: hashicorp/terraform-provider-google#13777

References:

• Quick reference - Docs Image - https://screenshot.googleplex.com/3uxcQXP288KL6U6.png
• Media CDN Feature Request - b/248569727
• Docs https://cloud.google.com/media-cdn/docs/reference/rest/v1/projects.locations.edgeCacheServices#corspolicy

If this PR is for Terraform, I acknowledge that I have:

• Searched through the issue tracker for an open issue that this either resolves or contributes to, commented on it to claim it, and written "fixes {url}" or "part of {url}" in this PR description. If there were no relevant open issues, I opened one and commented that I would like to work on it (not necessary for very small changes).
• Ensured that all new fields I added that can be set by a user appear in at least one example (for generated resources) or third_party test (for handwritten resources or update tests).
• Generated Terraform providers, and ran make test and make lint in the generated providers to ensure it passes unit and linter tests.
• Ran relevant acceptance tests using my own Google Cloud project and credentials (If the acceptance tests do not yet pass or you are unable to run them, please let your reviewer know).
• Read the Release Notes Guide before writing my release note below.

Release Note Template for Downstream PRs (will be copied)

network_services: increase maximum `allow_origins` from 5 to 25 on `network_services_edge_cache_service`

[modular-magician]

Oops! It looks like you're using an unknown release-note type in your changelog entries:

• REPLACEME

Please only use the types listed in https://github.com/GoogleCloudPlatform/magic-modules/blob/master/.ci/RELEASE_NOTES_GUIDE.md.

[modular-magician]

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I've detected that you're a community contributor. @roaks3, a repository maintainer, has been assigned to assist you and help review your changes.

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[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes:

Diff report

Your PR generated some diffs in downstreams - here they are.

Terraform GA: Diff ( 1 file changed, 1 insertion(+), 1 deletion(-))
Terraform Beta: Diff ( 1 file changed, 1 insertion(+), 1 deletion(-))
TF Validator: Diff ( 2 files changed, 3 insertions(+), 3 deletions(-))

[modular-magician]

Tests analytics

Total tests: 2467
Passed tests 2208
Skipped tests: 256
Failed tests: 3

Action taken

Triggering VCR tests in RECORDING mode for the tests that failed during VCR. Click here to see the failed tests

TestAccComputeForwardingRule_update|TestAccApigeeAddonsConfig_apigeeAddonsTestExample|TestAccLoggingBucketConfigProject_cmekSettings

[modular-magician]

Tests passed during RECORDING mode:
TestAccComputeForwardingRule_update[Debug log]
TestAccApigeeAddonsConfig_apigeeAddonsTestExample[Debug log]
TestAccLoggingBucketConfigProject_cmekSettings[Debug log]

All tests passed
View the build log or the debug log for each test

[roaks3]

LGTM, I also updated the release note