Elixir 1.19: Bump credo version to 1.7.X, fixes standalone build

Compilation error in file lib/credo/check/config_comment_finder.ex

• (Regex.CompileError) invalid range in character class at position 16 (elixir 1.19.5) lib/regex.ex:251: Regex.compile!/2 (elixir 1.19.5) lib/kernel.ex:6649: Kernel.compile_regex/2 (elixir 1.19.5) expanding macro: Kernel.sigil_r/2 lib/credo/check/config_comment_finder.ex:9: Credo.Check.ConfigCommentFinder (module) (elixir 1.19.5) expanding macro: Kernel.@/1 lib/credo/check/config_comment_finder.ex:9: Credo.Check.ConfigCommentFinder (module)