common: Add hugo.GoVersion

Closes #9849. This enables `hugo.GoVersion` in templates to access the
version of Go that the Hugo binary was built with.

content/en/functions/hugo.md

@@ -27,8 +27,8 @@ hugo.Generator
 hugo.Version
 : the current version of the Hugo binary you are using e.g. `0.63.2`
 
-
+hugo.GoVersion
-`hugo` returns an instance that contains the following functions:
+: returns the version of Go that the Hugo binary was built with. {{< new-in "0.101.0" >}}
 
 hugo.Environment
 : the current running environment as defined through the `--environment` cli tag
@@ -52,7 +52,6 @@ We highly recommend using `hugo.Generator` in your website's `<head>`. `hugo.Gen
 hugo.Deps
 : See [hugo.Deps](#hugodeps)
 
-
 ## hugo.Deps
 
 {{< new-in "0.92.0" >}}
@@ -112,4 +111,4 @@ An example table listing the dependencies:
     {{ end }}
   </tbody>
 </table>
-```
+```