chore(deps): update dependency google_cloud_cpp to v2.18.0

[renovate-bot]

This PR contains the following updates:

Package	Type	Update	Change
google_cloud_cpp	http_archive	minor	v2.16.0 -> v2.18.0

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Release Notes

googleapis/google-cloud-cpp (google_cloud_cpp)

v2.18.0

Compare Source

New Libraries

We are happy to announce the following GA libraries. Unless specifically noted,
the APIs in these libraries are stable, and are ready for production use.

• Secure Source Manager

Compute Engine

• fix(compute): RegionSecurityPoliciesClient::PatchSecurityPolicy added
  update_mask field.

Memorystore for Redis

New CloudRedisClusterClient.

OpenTelemetry

v2.17.0

Compare Source

Compute Engine

• fix(compute): build with Bazel and MSVC
  (#​12877)
• fix(compute): usable in external Bazel projects
  (#​12864)
• fix(compute): add missing bazelrc file
  (#​12856)

Storage

• feat(storage): another Bucket CRUD field
  (#​12842)
• fix(storage): fix tellg() values
  (#​12844)
• fix(storage): check ReadObject options at runtime
  (#​12841)
• feat(storage): MatchGlob for ListObjects()
  (#​12840)
• doc(storage): describe default project search
  (#​12833)

Common Libraries

• fix(oauth2): do not require id_token in creds
  (#​12867)

Other Changes

We have stopped testing with GCC 7.5.0 on openSUSE/Leap: this distro uses
GCC 7.5.0 by default. This specific version of GCC crashes when compiling some
of the files generated by Protobuf 24.x. In other distros we test with GCC 7.3,
without problems. And we also test with newer versions of GCC without problems.
The exact files that cause the compiler to crash seem to change with minor
changes in Protobuf or the input .proto files, making it difficult to maintain
some kind of exclusion list.

We have stopped testing with GCC 7.5.0 on openSUSE/Leap, and recommend you use
GCC >= 8 to compile google-cloud-cpp. If you must compile with GCC 7.5.0,
consider only enabling the libraries you will need.

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[dpebot]

/gcbrun

[vicspina]

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