Update actions, documentation templates and configuration files to v0.14.1 (#856)

Co-authored-by: Fede Fernández <[email protected]>

Author: 47erbot

.gitignore

@@ -35,6 +35,7 @@ project/plugins/project/
 .bloop/
 .metals/
 metals.sbt
+.scala-build/
 
 ### Vim ###
 
@@ -52,6 +53,9 @@ Sessionx.vim
 # Temporary
 .netrwhist
 
+# Project local build artefacts
+.output
+
 # Auto-generated tag files
 tags