add updates for big query kms changes

[megan07]

Fixes hashicorp/terraform-provider-google#9208

I'm assuming the input kms_key_name will remain consistent and always be the key name, I've made kms_key_version a computed value that will store the version if kmsKeyName is returned as a version.
I'm not positive that I'm not missing something, but hopefully its a star

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).
• Generated Terraform, and ran make test and make lint to ensure it passes unit and linter tests.
• 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).
• Ran relevant acceptance tests (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)

bigquery: add `kms_key_version` as an output on `bigquery_table.encryption_configuration` and the `destination_encryption_configuration` blocks of `bigquery_job.query`, `bigquery_job.load`, and `bigquery_copy`.

[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, 136 insertions(+), 34 deletions(-))
Terraform Beta: Diff ( 5 files changed, 137 insertions(+), 35 deletions(-))
TF Conversion: Diff ( 1 file changed, 33 insertions(+))

[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, 136 insertions(+), 34 deletions(-))
Terraform Beta: Diff ( 4 files changed, 136 insertions(+), 34 deletions(-))
TF Conversion: Diff ( 1 file changed, 33 insertions(+))

[modular-magician]

I have triggered VCR tests in RECORDING mode for the following tests that failed during VCR: TestAccComputeInstance_advancedMachineFeatures|TestAccComputeInstance_updateRunning_desiredStatusNotSet_notAllowStoppingForUpdate|TestAccComputeInstance_updateRunning_desiredStatusRunning_notAllowStoppingForUpdate|TestAccContainerNodePool_withGPU You can view the result here: https://ci-oss.hashicorp.engineering/viewQueued.html?itemId=194483

[modular-magician]

Tests failed during RECORDING mode: TestAccComputeInstance_updateRunning_desiredStatusNotSet_notAllowStoppingForUpdate|TestAccComputeInstance_updateRunning_desiredStatusRunning_notAllowStoppingForUpdate|TestAccContainerNodePool_withGPU Please fix these to complete your PR

[rileykarson]

LGTM, glad we get to keep drift detection and expose the new value.