Added support to pass a default_mode and mode for secrets

[jeremiele]

The change introduces default_mode at the secret volume level to specify the
default permissions for files within the volume while mode is introduced at the
item level to specify permissions for a specific file.

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

• [ X ] 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).
• [ X ] Generated Terraform, and ran make test and make lint to ensure it passes unit and linter tests.
• [ X ] 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).
• [ X ] Ran relevant acceptance tests (If the acceptance tests do not yet pass or you are unable to run them, please let your reviewer know).
• [ X ] Read the Release Notes Guide before writing my release note below.

Release Note Template for Downstream PRs (will be copied)

cloudrun: added support for `default_mode` and `mode` settings for created files within `secrets` in `google_cloud_run_service`

[modular-magician]

Hello! I am a robot who works on Magic Modules PRs.

I have detected that you are a community contributor, so your PR will be assigned to someone with a commit-bit on this repo for initial review.

Thanks for your contribution! A human will be with you soon.

@slevenick, please review this PR or find an appropriate assignee.

[modular-magician]

Hi! I'm the modular magician. Your PR generated some diffs in downstreams - here they are.

Diff report:

Terraform GA: Diff ( 4 files changed, 111 insertions(+), 18 deletions(-))
Terraform Beta: Diff ( 4 files changed, 115 insertions(+), 22 deletions(-))
TF Validator: Diff ( 1 file changed, 22 insertions(+))

[slevenick]

/gcbrun

[modular-magician]

Hi! I'm the modular magician. Your PR generated some diffs in downstreams - here they are.

Diff report:

Terraform GA: Diff ( 4 files changed, 111 insertions(+), 18 deletions(-))
Terraform Beta: Diff ( 3 files changed, 93 insertions(+))
TF Validator: Diff ( 1 file changed, 22 insertions(+))

[modular-magician]

I have triggered VCR tests in RECORDING mode for the following tests that failed during VCR: TestAccApigeeEnvironmentIamBindingGenerated|TestAccApigeeEnvironmentIamPolicyGenerated|TestAccCloudRunService_cloudRunServiceSecretVolumesExample|TestAccCloudFunctionsFunction_vpcConnector|TestAccComputeForwardingRule_update|TestAccContainerNodePool_withInvalidUpgradeSettings You can view the result here: https://ci-oss.hashicorp.engineering/viewQueued.html?itemId=232315

[jeremiele]

Hello and happy new year!

I was wondering if there was a timeline for this change to be reviewed?

Thanks a lot!

[slevenick]

Sorry, this looks good!