Make probeserver config optional for bucket notification processes in S3C

[Kerkesni]

• validate() doesn't seem to validate the config at all, replaced it with joi.attempt() that we use to validate the extension configs.
• Moved the probeserver validation out of the probeserver startup function and into the joi config schema, as it can now be optional. undefined is now returned by the startup function when no probeserver config is provided. This case is already supported in the entrypoint files.
• In S3C, bucket notification processes only contain configuration for the notification extension. We make the probeserver config optional in this case as it is not currently supported in federation.

Issue: BB-623

[bert-e]

Hello kerkesni,

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[bert-e]

Waiting for approval

The following approvals are needed before I can proceed with the merge:

• the author

• 2 peers

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.40%. Comparing base (6694ca8) to head (bb69b62).
Report is 29 commits behind head on development/8.7.

Additional details and impacted files

Files with missing lines	Coverage Δ
...nsions/notification/NotificationConfigValidator.js	100.00% <ø> (+25.00%)	⬆️
lib/Config.js	72.64% <100.00%> (+7.69%)	⬆️
lib/config.joi.js	100.00% <ø> (ø)
lib/util/probe.js	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes

Components	Coverage Δ
Bucket Notification	67.07% <ø> (+0.41%)	⬆️
Core Library	75.32% <100.00%> (+0.18%)	⬆️
Ingestion	69.24% <ø> (ø)
Lifecycle	76.20% <ø> (ø)
Oplog Populator	82.95% <ø> (ø)
Replication	57.79% <ø> (ø)
Bucket Scanner	85.60% <ø> (ø)

@@                 Coverage Diff                 @@
##           development/8.7    #2587      +/-   ##
===================================================
+ Coverage            70.31%   70.40%   +0.09%     
===================================================
  Files                  194      194              
  Lines                12997    12996       -1     
===================================================
+ Hits                  9139     9150      +11     
+ Misses                3848     3836      -12     
  Partials                10       10              

Flag	Coverage Δ
api:retry	9.73% <75.00%> (+<0.01%)	⬆️
api:routes	9.54% <75.00%> (+<0.01%)	⬆️
bucket-scanner	85.60% <ø> (ø)
ingestion	12.46% <75.00%> (+<0.01%)	⬆️
lib	7.52% <75.00%> (+0.01%)	⬆️
lifecycle	19.24% <75.00%> (+<0.01%)	⬆️
notification	0.87% <0.00%> (+<0.01%)	⬆️
replication	19.04% <75.00%> (+<0.01%)	⬆️
unit	46.69% <100.00%> (+0.08%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

[Kerkesni]

/approve

[bert-e]

In the queue

The changeset has received all authorizations and has been added to the
relevant queue(s). The queue(s) will be merged in the target development
branch(es) as soon as builds have passed.

The changeset will be merged in:

• ✔️ development/8.7

The following branches will NOT be impacted:

• development/7.10
• development/7.4
• development/7.70
• development/8.5
• development/8.6

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The following options are set: approve

[bert-e]

I have successfully merged the changeset of this pull request
into targetted development branches:

• ✔️ development/8.7

The following branches have NOT changed:

• development/7.10
• development/7.4
• development/7.70
• development/8.5
• development/8.6

Please check the status of the associated issue BB-623.

Goodbye kerkesni.