allow cloud build to write per-solution logs

[danistrebel]

Description

What's changed, or what was fixed?

• Log pipeline successes to Cloud logging

Housekeeping

(please check all that apply [x], do not edit the text)

• [x] I have run all the tests locally and they all pass.
• [x] I have followed the relevant style guide for my changes.
• [ ] PR requires full pipeline run (Run for changes only by default).

CC: @apigee-devrel-reviewers

[danistrebel]

/gcbrun

[danistrebel]

/gcbrun

[apigee-devrel-bot]

Pipeline Report

Pipeline	Result	Elapsed Wall Time
tools/pipeline-runner	pass	0s
TOTAL PIPELINE	pass	0s

View details in Cloud Build (permission required)

Commit version: a2024c4

[danistrebel]

/gcbrun

[apigee-devrel-bot]

Pipeline Report

Pipeline	Result	Elapsed Wall Time
tools/pipeline-runner	pass	0s
TOTAL PIPELINE	pass	0s

View details in Cloud Build (permission required)

Commit version: 569acdc

[danistrebel]

/gcbrun

[apigee-devrel-bot]

Pipeline Report

Pipeline	Result	Elapsed Wall Time
tools/pipeline-runner	pass	0s
TOTAL PIPELINE	pass	0s

View details in Cloud Build (permission required)

Commit version: b9f7318