Bump github.com/open-policy-agent/opa from 0.29.1 to 0.29.4 (#574)

Bumps [github.com/open-policy-agent/opa](https://github.com/open-policy-agent/opa) from 0.29.1 to 0.29.4.
- [Release notes](https://github.com/open-policy-agent/opa/releases)
- [Changelog](https://github.com/open-policy-agent/opa/blob/main/CHANGELOG.md)
- [Commits](open-policy-agent/opa@v0.29.1...v0.29.4)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -18,7 +18,7 @@ require (
 	github.com/logrusorgru/aurora v2.0.3+incompatible
 	github.com/moby/buildkit v0.8.2
 	github.com/olekukonko/tablewriter v0.0.5
-	github.com/open-policy-agent/opa v0.29.1
+	github.com/open-policy-agent/opa v0.29.4
 	github.com/opencontainers/image-spec v1.0.1
 	github.com/shteou/go-ignore v0.3.0
 	github.com/spf13/cobra v1.1.3

go.sum

@@ -933,8 +933,8 @@ github.com/onsi/gomega v1.9.0/go.mod h1:Ho0h+IUsWyvy1OpqCwxlQ/21gkhVunqlU8fDGcoT
 github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo=
 github.com/onsi/gomega v1.10.5/go.mod h1:gza4q3jKQJijlu05nKWRCW/GavJumGt8aNRxWg7mt48=
 github.com/op/go-logging v0.0.0-20160315200505-970db520ece7/go.mod h1:HzydrMdWErDVzsI23lYNej1Htcns9BCg93Dk0bBINWk=
-github.com/open-policy-agent/opa v0.29.1 h1:2aAGUtdTRgPF8eh0m9Wg4CoQtSbp/CcoZD7fejSX6xU=
-github.com/open-policy-agent/opa v0.29.1/go.mod h1:ZCOTD3yyFR8JvF8ETdWdiSPn9WcF1dXeQWOv7VoPorU=
+github.com/open-policy-agent/opa v0.29.4 h1:rNa/Gd3Fs0xWgL0aZoyblRwCZLJsSLDQOhnck6DWpaA=
+github.com/open-policy-agent/opa v0.29.4/go.mod h1:ZCOTD3yyFR8JvF8ETdWdiSPn9WcF1dXeQWOv7VoPorU=
 github.com/opencontainers/go-digest v0.0.0-20170106003457-a6d0ee40d420/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=
 github.com/opencontainers/go-digest v0.0.0-20180430190053-c9281466c8b2/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=
 github.com/opencontainers/go-digest v1.0.0-rc1/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s=