fixed bucket name validation

[modular-magician]

Fixes #12226

Rewrote validation logic and added much-needed unit testing. Invalid cases were tested against the API

Requirements implemented:

• Bucket names can only contain lowercase letters, numeric characters, dashes (-), underscores (_), and dots (.). Spaces are not allowed.
• Bucket names must start and end with a number or letter.
• Bucket names must contain 3-63 characters. Names containing dots can contain up to 222 characters, but each dot-separated component can be no longer than 63 characters.
• Bucket names cannot begin with the "goog" prefix.
• Bucket names cannot contain "google"

NOT implemented:

• Names containing dots require verification.
• Bucket names cannot be represented as an IP address in dotted-decimal notation (for example, 192.168.5.4).
• Bucket names cannot contain close misspellings of "google", such as "g00gle".

Release Note Template for Downstream PRs (will be copied)

storage: fixed a bug in `google_storage_bucket` where `name` was incorrectly validated.

Derived from GoogleCloudPlatform/magic-modules#6353

[github-actions]

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