chore(package): update actions/checkout action to v6

.editorconfig

@@ -0,0 +1,18 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+charset = utf-8
+indent_style = space
+indent_size = 2
+
+[*.go]
+indent_style = tab
+
+[Makefile]
+indent_style = tab
+
+[*.md]
+trim_trailing_whitespace = false

.gitattributes

@@ -0,0 +1 @@
+* text=auto eol=lf