Update indent config for uncrustify 0.65 compat.

It applies the struct new line rule slightly differently than before,
and changing it to 1 from 3 results in no changes in our existing base
whether using uncrustify 0.64 or 0.65.

Additionally, 0.65 seems to want to change indentation on some usages
of 'break' outside of bracketed regions, so I'm adding a line that will
force breaks to be put within brackets, which avoids the problem and
makes the codebase more consistent at the same time.

uncrustify/citus-style.cfg

@@ -1392,7 +1392,7 @@ nl_before_cpp_comment                     = 0        # number
 nl_after_multiline_comment                = false    # false/true
 
 # The number of newlines after '}' or ';' of a struct/enum/union definition
-nl_after_struct                           = 3        # number
+nl_after_struct                           = 1        # number
 
 # The number of newlines after '}' or ';' of a class definition
 nl_after_class                            = 0        # number
@@ -1522,7 +1522,7 @@ mod_sort_using                            = false    # false/true
 mod_sort_include                          = false    # false/true
 
 # If TRUE, it will move a 'break' that appears after a fully braced 'case' before the close brace.
-mod_move_case_break                       = false    # false/true
+mod_move_case_break                       = true    # false/true
 
 # Will add or remove the braces around a fully braced case statement.
 # Will only remove the braces if there are no variable declarations in the block.