chore(deps): update dependency grafana/loki to v2.7.2

tools/logcli/manifest.yaml

 name: logcli
-version: "2.7.1"
+version: "2.7.2"
 check: "" # Wrong version
 tags:
 - org/grafana

tools/loki-canary/manifest.yaml

 name: loki-canary
-version: "2.7.1"
+version: "2.7.2"
 check: "" # Wrong version
 tags:
 - org/grafana

tools/loki/manifest.yaml

 name: loki
-version: "2.7.1"
+version: "2.7.2"
 check: "" # Wrong version
 tags:
 - org/grafana

tools/promtail/manifest.yaml

 name: promtail
-version: "2.7.1"
+version: "2.7.2"
 check: "" # Empty version
 tags:
 - org/grafana