Revert "chore(deps): bump github.com/open-policy-agent/opa in /cli (GoogleCloudPlatform#1072)" (GoogleCloudPlatform#1079)

This reverts commit 59b322d.

Author: morgante

cli/go.mod

@@ -14,12 +14,12 @@ require (
 	github.com/inconshreveable/log15 v0.0.0-20201112154412-8562bdadbbac
 	github.com/jedib0t/go-pretty/v6 v6.2.4
 	github.com/mitchellh/go-testing-interface v1.14.2-0.20210217184823-a52172cd2f64
-	github.com/open-policy-agent/opa v0.37.0
+	github.com/open-policy-agent/opa v0.34.2
 	github.com/pkg/errors v0.9.1
-	github.com/spf13/cobra v1.3.0
-	github.com/spf13/viper v1.10.0
+	github.com/spf13/cobra v1.2.1
+	github.com/spf13/viper v1.9.0
 	github.com/stretchr/testify v1.7.0
-	google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa
+	google.golang.org/genproto v0.0.0-20211129164237-f09f9a12af12
 	gopkg.in/yaml.v2 v2.4.0
 )