fixup! slapos-testing: checkout slapos.recipe.cmmi using system git for bootstrap issues

software/slapos-testing/software.cfg

@@ -137,6 +137,9 @@ repository = https://lab.nexedi.com/nexedi/slapos.recipe.template.git
 [slapos.recipe.build-repository]
 <= git-clone-repository
 repository = https://lab.nexedi.com/nexedi/slapos.recipe.build.git
+# We use the system git and not slapos provided one, because
+# slapos.recipe.build is a dependency of slapos.recipe.cmmi
+git-executable = git
 
 [slapos.recipe.cmmi-repository]
 <= git-clone-repository