[AlinsRan]

Description

Bump nginx-lua-prometheus-api7 from 1.1.0-1 to 1.1.1-1.

1.1.1 updates a metric's pending increment in place instead of allocating a new {v, t} table on every incr() before the next sync() (api7/nginx-lua-prometheus#28). A histogram observation calls incr() for the count, the sum and every bucket it falls into, so the HTTP latency histograms allocate several dozen short-lived tables per request today. The change has no API or configuration impact; 1.1.0 and 1.1.1 differ only in prometheus_resty_counter.lua.

nginx-lua-prometheus-api7-1.1.1-1 is published on LuaRocks.

t/plugin/prometheus.t to prometheus4.t were run locally against 1.1.1 and 1.1.0. Both fail only on assertions that also fail on master locally ([error] checks hit by lua-resty-events failed to receive the header bytes noise, and prometheus.t TEST 41).

Which issue(s) this PR fixes:

None.

Checklist

• I have explained the need for this PR and the problem it solves
• I have explained the changes or the new features added to this PR
• I have added tests corresponding to this change
• I have updated the documentation to reflect this change
• I have verified that this change is backward compatible (If not, please discuss on the APISIX mailing list first)

[membphis]

LGTM