[query] Upgrade Prometheus 2.21.0 dependency #2689

[liguozhong]

fix https://github.com/m3db/m3/issues/2689

[CLAassistant]

All committers have signed the CLA.

[codecov[bot]]

Codecov Report

Merging #2693 (43925b9) into master (5bcb1ba) will decrease coverage by 21.5%. Report is 1156 commits behind head on master. The diff coverage is 0.0%.

Additional details and impacted files

@@            Coverage Diff            @@
##           master   #2693      +/-   ##
=========================================
- Coverage    65.2%   43.8%   -21.5%     
=========================================
  Files        1090    1078      -12     
  Lines       97050   96199     -851     
=========================================
- Hits        63330   42167   -21163     
- Misses      29040   50070   +21030     
+ Partials     4680    3962     -718     

Flag	Coverage Δ
aggregator	49.8% <ø> (-21.3%)	:arrow_down:
cluster	28.4% <ø> (-42.7%)	:arrow_down:
collector	50.9% <ø> (-20.6%)	:arrow_down:
dbnode	68.5% <ø> (-5.6%)	:arrow_down:
m3em	46.4% <ø> (-11.7%)	:arrow_down:
m3ninx	48.6% <ø> (-15.4%)	:arrow_down:
m3nsch	∅ <ø> (∅)
metrics	17.2% <ø> (ø)
msg	73.7% <ø> (-0.3%)	:arrow_down:
query	1.4% <0.0%> (-57.9%)	:arrow_down:
x	42.2% <ø> (-27.6%)	:arrow_down:

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