Github actions failing

From: NSENGIYUMVA WILBERFORCE <nsengiyumvawilberforce@gmail.com>
Date: Jan 8, 2023, 10:02 UTC
Message-ID: <CA+PPyiG=+rs_bOQbaNB311_DVdSc2g44SkLzpaqOER7rfxykrQ@mail.gmail.com>

Hi, So I wanted to send the next patch after review. All the tests pass when I run them on my PC but I get something like the following error when I test from my git branch

Show 17 quoted lines

>
> + git checkout -b signed
> 2283 Switched to a new branch 'signed'
> 2284 + echo 1
> 2285 + git add file
> 2286 + test_tick
> 2287 + test -z set
> 2288 + test_tick=1112912113
> 2289 + GIT_COMMITTER_DATE='1112912113 -0700'
> 2290 + GIT_AUTHOR_DATE='1112912113 -0700'
> 2291 + export GIT_COMMITTER_DATE GIT_AUTHOR_DATE
> 2292 + git commit -S -m initial
> 2293 error: cannot run gpg: No such file or directory
> 2294 error: gpg failed to sign the data
> 2295 fatal: failed to write commit object
> 2296 error: last command exited with $?=128
> 2297 not ok 338 - test bare signature atom

What could be wrong?