feat: Update timeout configurations.

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Here's the log from Synthtool:

synthtool > Executing /tmpfs/src/git/autosynth/working_repo/Spanner/synth.py.
synthtool > Ensuring dependencies.
synthtool > Pulling artman image.
latest: Pulling from googleapis/artman
Digest: sha256:b79c8c20ee51e5302686c9d1294672d59290df1489be93749ef17d0172cc508d
Status: Image is up to date for googleapis/artman:latest
synthtool > Cloning googleapis.
synthtool > Running generator for google/spanner/artman_spanner.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/php/google-cloud-spanner-v1.
synthtool > Replaced 'Copyright \\d{4}' in src/Admin/Database/V1/Gapic/DatabaseAdminGapicClient.php.
synthtool > Replaced 'Copyright \\d{4}' in src/Admin/Instance/V1/Gapic/InstanceAdminGapicClient.php.
synthtool > Replaced 'Copyright \\d{4}' in src/V1/Gapic/SpannerGapicClient.php.
synthtool > Replaced 'Copyright \\d{4}' in tests/Unit/V1/SpannerClientPartialVeneerTest.php.
synthtool > Replaced 'Copyright \\d{4}' in tests/Unit/V1/SpannerClientTest.php.
synthtool > Replaced 'Copyright \\d{4}' in tests/Unit/Admin/Database/V1/DatabaseAdminClientTest.php.
synthtool > Replaced 'Copyright \\d{4}' in tests/Unit/Admin/Instance/V1/InstanceAdminClientTest.php.
synthtool > Running generator for google/spanner/admin/database/artman_spanner_admin_database.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/php/google-cloud-spanner-admin-database-v1.
synthtool > Replaced 'Copyright \\d{4}' in src/Admin/Database/V1/Gapic/DatabaseAdminGapicClient.php.
synthtool > Replaced 'Copyright \\d{4}' in src/Admin/Instance/V1/Gapic/InstanceAdminGapicClient.php.
synthtool > Replaced 'Copyright \\d{4}' in src/V1/Gapic/SpannerGapicClient.php.
synthtool > Replaced 'Copyright \\d{4}' in tests/Unit/Admin/Database/V1/DatabaseAdminClientTest.php.
synthtool > Running generator for google/spanner/admin/instance/artman_spanner_admin_instance.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/php/google-cloud-spanner-admin-instance-v1.
synthtool > Replaced 'Copyright \\d{4}' in src/Admin/Database/V1/Gapic/DatabaseAdminGapicClient.php.
synthtool > Replaced 'Copyright \\d{4}' in src/Admin/Instance/V1/Gapic/InstanceAdminGapicClient.php.
synthtool > Replaced 'Copyright \\d{4}' in src/V1/Gapic/SpannerGapicClient.php.
synthtool > Replaced 'Copyright \\d{4}' in tests/Unit/Admin/Instance/V1/InstanceAdminClientTest.php.
synthtool > No replacements made in src/V1/Gapic/SpannerGapicClient.php for pattern ExecuteSqlRequest_QueryMode, maybe replacement is not longer needed?
synthtool > No replacements made in src/V1/Gapic/SpannerGapicClient.php for pattern ExecuteBatchDmlRequest_Statement, maybe replacement is not longer needed?
synthtool > Replaced 'namespace Google\\\\Cloud\\\\Spanner\\\\Admin\\\\Database\\\\Tests\\\\Unit' in tests/Unit/Admin/Database/V1/DatabaseAdminClientTest.php.
synthtool > Replaced 'namespace Google\\\\Cloud\\\\Spanner\\\\Admin\\\\Instance\\\\Tests\\\\Unit' in tests/Unit/Admin/Instance/V1/InstanceAdminClientTest.php.
synthtool > Replaced '@group database' in tests/Unit/Admin/Database/V1/DatabaseAdminClientTest.php.
synthtool > Replaced '@group instance' in tests/Unit/Admin/Instance/V1/InstanceAdminClientTest.php.
synthtool > Cleaned up 1 temporary directories.
synthtool > Wrote metadata to synth.metadata.

[googlebot]

☹️ Sorry, but only Googlers may change the label cla: yes.

[codecov]

Codecov Report

Merging #2056 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #2056   +/-   ##
=========================================
  Coverage     92.57%   92.57%           
  Complexity     4378     4378           
=========================================
  Files           304      304           
  Lines         13012    13012           
=========================================
  Hits          12046    12046           
  Misses          966      966

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