goenv: add page (#14303)

Co-authored-by: Wiktor Perskawiec <git@spageektti.cc>
Co-authored-by: Sebastiaan Speck <12570668+sebastiaanspeck@users.noreply.github.com>
Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

pages/common/goenv.md

@@ -0,0 +1,33 @@
+# goenv
+
+> Install, uninstall or switch between Golang versions.
+> Supports version numbers like "1.16.15" or "1.22.8" etc.
+> More information: <https://github.com/go-nv/goenv>.
+
+- List all available goenv commands:
+
+`goenv commands`
+
+- Install a specific version of Golang:
+
+`goenv install {{go_version}}`
+
+- Use a specific version of Golang in the current project:
+
+`goenv local {{go_version}}`
+
+- Set the default Golang version:
+
+`goenv global {{go_version}}`
+
+- List all available Golang versions and highlight the default one:
+
+`goenv versions`
+
+- Uninstall a given Go version:
+
+`goenv uninstall {{go_version}}`
+
+- Run an executable with the selected Go version:
+
+`goenv exec go run {{go_version}}`