fix: crash on rebar_compiler_format:colorize/2

[zhongwencool]

fix: rebar_compiler_format:colorize(<<>>, 1) crash.

rebar3 compile
===> Verifying dependencies...
===> Analyzing applications...
===> Compiling ecron
===> Task failed: {{badmatch,[]},
                   [{rebar_compiler_format,colorize,2,
                        [{file,
                             "/private/tmp/rebar3-20240921-6522-hpmqce/rebar3-3.24.0/apps/rebar/src/rebar_compiler_format.erl"},
                         {line,74}]},
                    {rebar_compiler_format,format,5,
                        [{file,
                             "/private/tmp/rebar3-20240921-6522-hpmqce/rebar3-3.24.0/apps/rebar/src/rebar_compiler_format.erl"},
                         {line,25}]},
                    {rebar_base_compiler,'-format_errors/4-lc$^1/1-1-',4,
                        [{file,
                             "/private/tmp/rebar3-20240921-6522-hpmqce/rebar3-3.24.0/apps/rebar/src/rebar_base_compiler.erl"},
                         {line,278}]},
                    {rebar_base_compiler,'-format_errors/4-lc$^0/1-0-',3,
                        [{file,
                             "/private/tmp/rebar3-20240921-6522-hpmqce/rebar3-3.24.0/apps/rebar/src/rebar_base_compiler.erl"},
                         {line,278}]},
                    {rebar_base_compiler,error_tuple,5,
                        [{file,
                             "/private/tmp/rebar3-20240921-6522-hpmqce/rebar3-3.24.0/apps/rebar/src/rebar_base_compiler.erl"},
                         {line,160}]},
                    {rebar_compiler,compile_worker,2,
                        [{file,
                             "/private/tmp/rebar3-20240921-6522-hpmqce/rebar3-3.24.0/apps/rebar/src/rebar_compiler.erl"},
                         {line,337}]},
                    {rebar_parallel,worker,3,
                        [{file,
                             "/private/tmp/rebar3-20240921-6522-hpmqce/rebar3-3.24.0/apps/rebar/src/rebar_parallel.erl"},
                         {line,260}]}]}