Bump github.com/paketo-buildpacks/occam in /template-cnb

Bumps [github.com/paketo-buildpacks/occam](https://github.com/paketo-buildpacks/occam) from 0.18.2 to 0.18.6.
- [Release notes](https://github.com/paketo-buildpacks/occam/releases)
- [Commits](paketo-buildpacks/occam@v0.18.2...v0.18.6)

---
updated-dependencies:
- dependency-name: github.com/paketo-buildpacks/occam
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

template-cnb/go.mod

@@ -4,7 +4,7 @@ go 1.16
 
 require (
 	github.com/BurntSushi/toml v1.4.0
-	github.com/onsi/gomega v1.30.0
-	github.com/paketo-buildpacks/occam v0.18.2
+	github.com/onsi/gomega v1.33.1
+	github.com/paketo-buildpacks/occam v0.18.6
 	github.com/sclevine/spec v1.4.0
 )