Remove label selector string quoting from mimir-prometheus (#8148)

Reverting prometheus/prometheus#14068
because it is causing unforseen complications with LBAC in GEM.

Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.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 v0.0.0-20240515135245-e5b85c151ba8
+replace github.com/prometheus/prometheus => github.com/grafana/mimir-prometheus v0.0.0-20240515171138-a3ac8a4266ca
 
 // 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 v0.0.0-20240515135245-e5b85c151ba8 h1:XmqfG3buFH0G/ns/DXnyMx46LITUEENXjZ84f7YAUy0=
-github.com/grafana/mimir-prometheus v0.0.0-20240515135245-e5b85c151ba8/go.mod h1:ZlD3SoAHSwXK5VGLHv78Jh5kOpgSLaQAzt9gxq76fLM=
+github.com/grafana/mimir-prometheus v0.0.0-20240515171138-a3ac8a4266ca h1:4JoJnC0wQ83X1uFzpvjFxdDOtT6Y15vKFXLNK1U4YHQ=
+github.com/grafana/mimir-prometheus v0.0.0-20240515171138-a3ac8a4266ca/go.mod h1:ZlD3SoAHSwXK5VGLHv78Jh5kOpgSLaQAzt9gxq76fLM=
 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/pyroscope-go/godeltaprof v0.1.6 h1:nEdZ8louGAplSvIJi1HVp7kWvFvdiiYg3COLlTwJiFo=