Bump github.com/open-policy-agent/opa from 0.55.0 to 0.56.0 (#4520)

Bumps [github.com/open-policy-agent/opa](https://github.com/open-policy-agent/opa) from 0.55.0 to 0.56.0.
- [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@v0.55.0...v0.56.0)

---
updated-dependencies:
- dependency-name: github.com/open-policy-agent/opa
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -58,7 +58,7 @@ require (
 	github.com/lib/pq v1.10.9
 	github.com/mattn/go-sqlite3 v1.14.17
 	github.com/mitchellh/cli v1.1.5
-	github.com/open-policy-agent/opa v0.55.0
+	github.com/open-policy-agent/opa v0.56.0
 	github.com/prometheus/client_golang v1.16.0
 	github.com/shirou/gopsutil/v3 v3.23.8
 	github.com/sigstore/cosign/v2 v2.2.0
@@ -174,7 +174,6 @@ require (
 	github.com/felixge/httpsnoop v1.0.3 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
-	github.com/ghodss/yaml v1.0.0 // indirect
 	github.com/go-chi/chi v4.1.2+incompatible // indirect
 	github.com/go-ini/ini v1.67.0 // indirect
 	github.com/go-jose/go-jose/v3 v3.0.0 // indirect

go.sum

@@ -820,7 +820,6 @@ github.com/fullsailor/pkcs7 v0.0.0-20190404230743-d7302db945fa h1:RDBNVkRviHZtvD
 github.com/fullsailor/pkcs7 v0.0.0-20190404230743-d7302db945fa/go.mod h1:KnogPXtdwXqoenmZCw6S+25EAm2MkxbG0deNDu4cbSA=
 github.com/gabriel-vasile/mimetype v1.4.2 h1:w5qFW6JKBz9Y393Y4q372O9A7cUSequkh1Q7OhCmWKU=
 github.com/gabriel-vasile/mimetype v1.4.2/go.mod h1:zApsH/mKG4w07erKIaJPFiX0Tsq9BFQgN3qGY5GnNgA=
-github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-chi/chi v4.1.2+incompatible h1:fGFk2Gmi/YKXk0OmGfBh0WgmN3XB8lVnEyNz34tQRec=
 github.com/go-chi/chi v4.1.2+incompatible/go.mod h1:eB3wogJHnLi3x/kFX2A+IbTBlXxmMeXJVKy9tTv1XzQ=
@@ -1395,8 +1394,8 @@ github.com/onsi/gomega v1.17.0/go.mod h1:HnhC7FXeEQY45zxNK3PPoIUhzk/80Xly9PcubAl
 github.com/onsi/gomega v1.19.0/go.mod h1:LY+I3pBVzYsTBU1AnDwOSxaYi9WoWiqgwooUqq9yPro=
 github.com/onsi/gomega v1.27.10 h1:naR28SdDFlqrG6kScpT8VWpu1xWY5nJRCF3XaYyBjhI=
 github.com/onsi/gomega v1.27.10/go.mod h1:RsS8tutOdbdgzbPtzzATp12yT7kM5I5aElG3evPbQ0M=
-github.com/open-policy-agent/opa v0.55.0 h1:s7Vm4ph6zDqqP/KzvUSw9fsKVsm9lhbTZhYGxxTK7mo=
-github.com/open-policy-agent/opa v0.55.0/go.mod h1:2Vh8fj/bXCqSwGMbBiHGrw+O8yrho6T/fdaHt5ROmaQ=
+github.com/open-policy-agent/opa v0.56.0 h1:FUSb6MyckjuffOMshEG8P+HGnckxkJ8ENZJHEzAddhk=
+github.com/open-policy-agent/opa v0.56.0/go.mod h1:un01L10fkolr00KJMDSqGb2FXCjVyVQOybLtHOfSEfY=
 github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
 github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
 github.com/opencontainers/image-spec v1.1.0-rc4 h1:oOxKUJWnFC4YGHCCMNql1x4YaDfYBTS5Y4x/Cgeo1E0=