add govulncheck

Author: joonas-fi

Dockerfile

@@ -19,6 +19,7 @@ RUN apt update && apt install -y zip \
 	&& go install golang.org/x/tools/cmd/goimports@latest \
 	&& go install golang.org/x/tools/cmd/godoc@latest \
 	&& go install golang.org/x/tools/gopls@latest \
+	&& go install golang.org/x/vuln/cmd/govulncheck@latest \
 	&& go install github.com/function61/deployer/cmd/deployer@latest \
 	&& go install github.com/rogpeppe/gohack@latest \
 	&& go install google.golang.org/protobuf/cmd/protoc-gen-go@latest \

README.md

@@ -28,6 +28,7 @@ Features
   [language server](https://langserver.org/). Works in a container without changes to one's host system!
 	* Working is somewhat tied to use with Turbo Bob (LSP working inside container needs a few tricks)
 - Contains [Gohack](https://github.com/rogpeppe/gohack) to make editing dependency modules easy
+- [Govulncheck](https://pkg.go.dev/golang.org/x/vuln/cmd/govulncheck) reports known vulnerabilities that affect Go code.
 - Fully static builds (so works even on Alpine linux which doesn't have standard libc)
 - Cross compilation support:
 	* Linux-amd64