Update .editorconfig

Author: terraform-cluster-config[bot]

.editorconfig

@@ -15,7 +15,7 @@ insert_final_newline = true
 max_line_length = 120
 tab_width = 4
 trim_trailing_whitespace = true
-ij_continuation_indent_size = 8
+ij_continuation_indent_size = 4
 ij_formatter_off_tag = @formatter:off
 ij_formatter_on_tag = @formatter:on
 ij_formatter_tags_enabled = true