Add an output-only field for Firebase storage default bucket id

[rainshen49]

Add an output_only field for Firebase storage default bucket id. This is for convenience so that clients don't have to parse the resource name string.

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firebasestorage: added `bucket.bucket_id` field to `google_firebase_storage_default_bucket` resource (beta)

[github-actions]

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[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes for commit 419d7f6:

Diff report

Your PR generated the following diffs in downstream repositories:

Repository	Diff Link	Changes
google provider	View Diff	1 file changed, 4 insertions(+)
google-beta provider	View Diff	3 files changed, 15 insertions(+), 5 deletions(-)

Test report

Analytics

Total Tests	Passed	Skipped	Affected
2	2	0	0

Affected Service Packages

• firebasestorage

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🟢 All tests passed in Replaying mode! No Recording was needed.

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@rainshen49, @jacksonic, @shuyama1 VCR tests complete for 419d7f6!

[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes for commit a715585:

Diff report

Your PR generated the following diffs in downstream repositories:

Repository	Diff Link	Changes
google provider	View Diff	1 file changed, 4 insertions(+)
google-beta provider	View Diff	3 files changed, 15 insertions(+), 5 deletions(-)

Test report

Analytics

Total Tests	Passed	Skipped	Affected
2	2	0	0

Affected Service Packages

• firebasestorage

Learn how VCR tests work

---

Step 1: Replaying Mode

🟢 All tests passed in Replaying mode! No Recording was needed.

View the replaying VCR build log

@rainshen49, @jacksonic, @shuyama1 VCR tests complete for a715585!