Workaround error: panic: load embedded ruleguard rules: rules/rules.go:13: can't load fmt. (#27)

Proposed workaround: golangci/golangci-lint#2673 (comment)

Author: lpusok

checks.bitrise.yml

@@ -46,6 +46,7 @@ workflows:
         - content: |-
             #!/bin/env bash
             set -xeo pipefail
+            export GOROOT=$(go env GOROOT)
             curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.47.3
             golangci-lint run --timeout 5m