chore(deps): update module github.com/bufbuild/buf/cmd/buf to v1.66.0

| datasource | package                         | from    | to      |
| ---------- | ------------------------------- | ------- | ------- |
| go         | github.com/bufbuild/buf/cmd/buf | v1.65.0 | v1.66.0 |


Signed-off-by: renovate-sh-app[bot] <219655108+renovate-sh-app[bot]@users.noreply.github.com>

Author: renovate-sh-app[bot]

mimir-build-image/Dockerfile

@@ -58,7 +58,7 @@ RUN GO111MODULE=on \
 	go install github.com/norwoodj/helm-docs/cmd/helm-docs@v1.14.2 && \
 	go install github.com/open-policy-agent/conftest@v0.66.0 && \
 	go install github.com/uber-go/gopatch@v0.4.0 && \
-	go install github.com/bufbuild/buf/cmd/buf@v1.65.0 && \
+	go install github.com/bufbuild/buf/cmd/buf@v1.66.0 && \
 	rm -rf /go/pkg /go/src /root/.cache
 
 COPY --from=helm /usr/bin/helm /usr/bin/helm