build: disable pytest cache on distcheck

We're running it in a potentially read only source dir, which would
cause (harmless) pytest warnings. The contexts where we run it are
throwaway ones anyway, so the cache can be disabled altogether.

Author: scop

.github/workflows/ci.yaml

@@ -83,7 +83,7 @@ jobs:
           --env CI=true
           --env DIST=${{matrix.dist}}
           --env BSD=${{matrix.bsd}}
-          --env PYTESTFLAGS=--verbose
+          --env PYTESTFLAGS="--verbose -p no:cacheprovider"
           --env NETWORK=$NETWORK
           ${NETWORK:+--network $NETWORK}
           $(test $DIST = fedoradev && echo --security-opt seccomp=unconfined)

test/docker/entrypoint.sh

@@ -18,5 +18,5 @@ autoreconf -i
 make -j
 
 xvfb-run make distcheck \
-    PYTESTFLAGS="${PYTESTFLAGS---verbose --numprocesses=auto --dist=loadfile}"
+    PYTESTFLAGS="${PYTESTFLAGS---verbose -p no:cacheprovider --numprocesses=auto --dist=loadfile}"
 cp -p bash-completion-*.tar.* "$oldpwd/"