fix an issue with building loki

[sandeepsukhani]

What this PR does / why we need it:
I just merged 2 PRs where the first one changes a signature of a function which the second one was using.
I forgot about that change in signature causing the build to break.
This PR fixes the issue.

[slim-bean]

LGTM

[codecov-commenter]

Codecov Report

Merging #2642 into master will decrease coverage by 1.66%.
The diff coverage is 54.12%.

@@            Coverage Diff             @@
##           master    #2642      +/-   ##
==========================================
- Coverage   62.87%   61.21%   -1.67%     
==========================================
  Files         170      172       +2     
  Lines       15051    13327    -1724     
==========================================
- Hits         9464     8158    -1306     
+ Misses       4827     4424     -403     
+ Partials      760      745      -15     

Impacted Files	Coverage Δ
pkg/logcli/query/query.go	35.59% <0.00%> (-3.07%)	⬇️
pkg/loki/loki.go	0.00% <0.00%> (ø)
pkg/loki/modules.go	3.80% <0.00%> (-0.35%)	⬇️
pkg/storage/stores/shipper/compactor/compactor.go	0.00% <0.00%> (ø)
pkg/ingester/ingester.go	46.27% <45.45%> (-4.93%)	⬇️
pkg/querier/ingester_querier.go	64.75% <64.75%> (ø)
pkg/querier/querier.go	59.36% <86.66%> (-3.36%)	⬇️
pkg/storage/async_store.go	88.00% <88.00%> (ø)
pkg/storage/store.go	64.81% <88.88%> (-2.93%)	⬇️
pkg/logql/vector.go	59.09% <0.00%> (-28.41%)	⬇️
... and 171 more