Backport [CORE-1198] Add a timeout to loki requests from debug dump (#8329)

[armaanv]

• loki timeout and line num change

• move timout to debug dump server

[codecov]

Codecov Report

Merging #8331 (a856def) into 2.3.x (781958d) will decrease coverage by 18.80%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##            2.3.x   #8331       +/-   ##
==========================================
- Coverage   22.26%   3.45%   -18.81%     
==========================================
  Files         415     201      -214     
  Lines      112267   74159    -38108     
==========================================
- Hits        24995    2563    -22432     
+ Misses      82979   71236    -11743     
+ Partials     4293     360     -3933     

Impacted Files	Coverage Δ
src/server/auth/db.go	0.00% <0.00%> (-100.00%)	⬇️
src/internal/watch/op.go	0.00% <0.00%> (-100.00%)	⬇️
src/internal/miscutil/log.go	0.00% <0.00%> (-100.00%)	⬇️
src/internal/miscutil/math.go	0.00% <0.00%> (-100.00%)	⬇️
src/internal/grpcutil/error.go	0.00% <0.00%> (-100.00%)	⬇️
src/internal/randutil/unique.go	0.00% <0.00%> (-100.00%)	⬇️
src/internal/testutil/naming.go	0.00% <0.00%> (-100.00%)	⬇️
src/internal/storage/fileset/metadata_store.go	0.00% <0.00%> (-100.00%)	⬇️
src/internal/storage/track/tracker.go	3.70% <0.00%> (-96.30%)	⬇️
src/internal/task/etcd_queue.go	0.00% <0.00%> (-93.55%)	⬇️
... and 363 more

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