[elpa] externals/urgrep updated (78e8e8c2e8 -> 17e3f8547c)

[ELPA Syncer]

elpasync pushed a change to branch externals/urgrep.

      from  78e8e8c2e8 Use the compat package to handle forward-compatibility 
shims; resolves #4
       new  73581bc3db Fix byte-compilation issues
       new  17e3f8547c Add copyright to Makefile since it's not so trivial 
anymore


Summary of changes:
 .github/workflows/build.yml |  5 +++--
 Makefile                    | 40 ++++++++++++++++++++++++++++++++++++++++
 urgrep-tests.el             |  3 +++
 urgrep-wgrep.el             | 16 +++++++++++-----
 urgrep.el                   | 10 ++++++++--
 5 files changed, 65 insertions(+), 9 deletions(-)