backupccl: set shorter closed_timestamp settings in datadriven tests

[adityamaru]

This change drops the kv.closed_timestamp.side_transport_interval
and kv.closed_timestamp.target_duration in the servers started as part
of the datadriven framework. This change was motivated by the fact that
cluster settings set in certain multi-node datadriven tests were not being
observed by all nodes in the cluster. Cluster settings are now backed by
rangefeeds instead of gossiping the SystemSpanConfig and so these settings
should speed up when all nodes become aware of changes to their values.

Fixes: #77264

Release note: None

[adityamaru]

The symptom was very similar to #77221. There is a more heavy handed solution here where we reject datadriven tests from running SET CLUSTER SETTING sql queries, and instead introduce a new instruction that is backed by serverutils.SetClusterSetting introduced by @miretskiy in the PR linked above. For the time being though I've held off on that patch, since this seems to fix it for us too. Will be worth tracking #73399 to see if something more sophisticated is built out in the future.

Stressed for 15mins and not failing, previously it would fail within a minute.

[cockroach-teamcity]

This change is 

[stevendanna]

This seems reasonable to address the flake.

It does make me wonder how many tests would be subtly wrong if run in multi-node configurations:

> rg '^SET CLUSTER SETTING' | grep "/testdata/" | wc -l
     252
``

[adityamaru]

TFTR!

bors r=stevendanna

[craig]

🕐 Waiting for PR status (Github check) to be set, probably by CI. Bors will automatically try to run when all required PR statuses are set.

[adityamaru]

bors r=stevendanna

[craig]

🕐 Waiting for PR status (Github check) to be set, probably by CI. Bors will automatically try to run when all required PR statuses are set.

[adityamaru]

bors r=stevendanna

[craig]

🕐 Waiting for PR status (Github check) to be set, probably by CI. Bors will automatically try to run when all required PR statuses are set.

[adityamaru]

bors r=stevendanna

[craig]

🕐 Waiting for PR status (Github check) to be set, probably by CI. Bors will automatically try to run when all required PR statuses are set.

[adityamaru]

bazel failure is an unrelated flake

bors r=stevendanna

[adityamaru]

bors r=stevendanna

[craig]

Build failed:

• GitHub CI (Cockroach)

[adityamaru]

bors r+

[craig]

Build failed:

• GitHub CI (Cockroach)

[adityamaru]

Flakes again 😢 Going to see if bors lets me through.

bors r=stevendanna

[craig]

Build succeeded:

• GitHub CI (Cockroach)