Add deletion_protection field to Redis Instance

[SamanthaMathews]

Add deletion_protection field to make deletion actions require an explicit intent
Part of b/367733375

Part of hashicorp/terraform-provider-google#18854

Release Note Template for Downstream PRs (will be copied)

Redis: added `deletion_protection` field to `redis_instance` to make deleting them require an explicit intent. `redis_instance` resources now cannot be destroyed unless `deletion_protection = false` is set for the resource.

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[c2thorn]

Discussing with @SamanthaMathews offline about this PR and the go rewrite migration

[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.

google provider: Diff ( 5 files changed, 134 insertions(+), 145 deletions(-))
google-beta provider: Diff ( 5 files changed, 134 insertions(+), 145 deletions(-))
Open in Cloud Shell: Diff ( 1 file changed, 1 insertion(+))

[modular-magician]

Tests analytics

Total tests: 0
Passed tests: 0
Skipped tests: 0
Affected tests: 0

Click here to see the affected service packages

• redis

#### Non-exercised tests

Tests were added that are skipped in VCR:

• TestAccRedisInstance_deletionprotection
  $\textcolor{red}{\textsf{Errors occurred during REPLAYING mode. Please fix them to complete your PR.}}$

View the build log