Optimise shared chat integration spec examples

What does this MR do and why?

This MR optimises the shared chat integration spec examples.

These shared examples are included in 5 "chat integration" specs.

Locally, this optimisation is benchmarked as reducing the time these shared examples take by ~85%, for each of the 5 specs that include them.

# One of the shared examples:
bundle exec spring rspec spec/models/integrations/discord_spec.rb:6

# This branch
Finished in 24.73 seconds (files took 1.56 seconds to load)

# master
Finished in 4 minutes 10.5 seconds (files took 1.49 seconds to load)

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

changed milestone to %15.3

added backend groupintegrations [DEPRECATED] maintenancerefactor labels

assigned to @.luke

added typemaintenance label

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Suggested Reviewers
@mwoolf, @toupeira, @engwan, @pshutsin, @a_mcdonald

If you do not believe these suggestions are useful, please apply the label Bad Suggested Reviewer. You can also provide feedback for this feature on this issue: https://gitlab.com/gitlab-org/gitlab/-/issues/357923.

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Reviewer roulette

Changes that require review have been detected!

Please refer to the table below for assigning reviewers and maintainers suggested by Danger in the specified category:

Category	Reviewer	Maintainer
backend	Serena Fang (@serenafang) (UTC-5, 17 hours behind @.luke)	Kerri Miller (@kerrizor) (UTC-7, 19 hours behind @.luke)

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Generated by Danger

added 1 commit

• 206cb002 - Remove duplicate tests

Compare with previous version

Setting label(s) devopsecosystem sectiondev based on ~"group::integrations".

added sectiondev + 1 deleted label

added 681 commits

• 206cb002...764383a6 - 679 commits from branch master
• 6179e145 - Optimise shared chat integration spec examples
• b19c7d9e - Only create pipelines for tests that need it

Compare with previous version

changed the description

Hi @joseph! Could you please give this MR its first backend review? Thank you!

requested review from @joseph

changed the description

Thank you for this, @.luke. In my environment, execution time has reduced by 50%.

approved this merge request

requested review from @john-mason and removed review request for @joseph

@joseph, thanks for approving this merge request.

This is the first time the merge request is approved. To ensure full test coverage, a new pipeline has been started.

For more info, please refer to the following links:

• rspec minimal jobs
• jest minimal jobs
• merging a merge request.

Hi @john-mason! Could you please review this MR, roulette has picked you! (This is my first review so a second opinion is welcome )

resolved all threads

mentioned in issue #370921 (closed)

approved this merge request

requested review from @kerrizor and removed review request for @john-mason

approved this merge request

resolved all threads

enabled an automatic merge when the pipeline for d281f963 succeeds

merged

mentioned in commit 1c17dbaa

added workflowstaging-canary label

added workflowcanary label and removed workflowstaging-canary label

added workflowstaging label and removed workflowcanary label

added workflowproduction label and removed workflowstaging label

added workflowpost-deploy-db-staging label and removed workflowproduction label

added workflowpost-deploy-db-production label and removed workflowpost-deploy-db-staging label

added releasedcandidate label

added devopsmanage label and removed 1 deleted label

added groupimport and integrate label and removed groupintegrations [DEPRECATED] label