[r294] Update to mimir-prometheus w/ PostingsForMatchersCache context…

… cancellation fix (#8341)

Signed-off-by: Marco Pracucci <marco@pracucci.com>

go.mod

@@ -257,7 +257,7 @@ require (
 )
 
 // Using a fork of Prometheus with Mimir-specific changes.
-replace github.com/prometheus/prometheus => github.com/grafana/mimir-prometheus v0.0.0-20240611075245-c5b4f4773d0d
+replace github.com/prometheus/prometheus => github.com/grafana/mimir-prometheus v0.0.0-20240611122839-8281ad989bfd
 
 // Replace memberlist with our fork which includes some fixes that haven't been
 // merged upstream yet:

go.sum

@@ -517,8 +517,8 @@ github.com/grafana/gomemcache v0.0.0-20240229205252-cd6a66d6fb56 h1:X8IKQ0wu40wp
 github.com/grafana/gomemcache v0.0.0-20240229205252-cd6a66d6fb56/go.mod h1:PGk3RjYHpxMM8HFPhKKo+vve3DdlPUELZLSDEFehPuU=
 github.com/grafana/memberlist v0.3.1-0.20220714140823-09ffed8adbbe h1:yIXAAbLswn7VNWBIvM71O2QsgfgW9fRXZNR0DXe6pDU=
 github.com/grafana/memberlist v0.3.1-0.20220714140823-09ffed8adbbe/go.mod h1:MS2lj3INKhZjWNqd3N0m3J+Jxf3DAOnAH9VT3Sh9MUE=
-github.com/grafana/mimir-prometheus v0.0.0-20240611075245-c5b4f4773d0d h1:DVScm3ZdG8/b8ZluZ/3qSiln3Sqri4qq7NTUt0dXmj8=
-github.com/grafana/mimir-prometheus v0.0.0-20240611075245-c5b4f4773d0d/go.mod h1:Z5gyidU1bBNK7wJ3wPPcP8Fh3mgiHkAmnlATaqcdDak=
+github.com/grafana/mimir-prometheus v0.0.0-20240611122839-8281ad989bfd h1:aO+gu9PvCT6/y/cOj0v986WwpyaXE8qWZIrBEF9BrjE=
+github.com/grafana/mimir-prometheus v0.0.0-20240611122839-8281ad989bfd/go.mod h1:Z5gyidU1bBNK7wJ3wPPcP8Fh3mgiHkAmnlATaqcdDak=
 github.com/grafana/opentracing-contrib-go-stdlib v0.0.0-20230509071955-f410e79da956 h1:em1oddjXL8c1tL0iFdtVtPloq2hRPen2MJQKoAWpxu0=
 github.com/grafana/opentracing-contrib-go-stdlib v0.0.0-20230509071955-f410e79da956/go.mod h1:qtI1ogk+2JhVPIXVc6q+NHziSmy2W5GbdQZFUHADCBU=
 github.com/grafana/prometheus-alertmanager v0.25.1-0.20240605141526-70d9d63f74fc h1:VoEf4wNiS3hCPxxmFdEvyeZJA3eI4Wb4gAlzYZwh52A=