docker: upgrade containers for local development to F41

See fedora-copr#3460

Several issues appeared during the upgrade, and we are addressing them here:

- To my dismay, `python3-ipdb` is not available on F41.
  See https://bugzilla.redhat.com/show_bug.cgi?id=2280968
  Hopefully, the upstream issue will get fixed and the pacakge will get
  unretired in Fedora. I love using it.
- The `dist-git-client` is not a part of Copr codebase anymore and it was moved
  to dist-git. See https://github.com/release-engineering/dist-git
  As a consequence, the name of the configuration directory changed.
- Removing mlocate. We discussed it several times and IIRC we don't need it

Also, please recreate the whole environment through
`docker-compose down --rmi all --volumes` and `docker-compose up -d`.

docker/backend/Dockerfile

@@ -1,4 +1,4 @@
-FROM registry.fedoraproject.org/fedora:39
+FROM registry.fedoraproject.org/fedora:41
 MAINTAINER [email protected]
 
 ARG ADDITIONAL_COPR_REPOSITORIES="@copr/copr-dev"
@@ -22,14 +22,12 @@ RUN set -ex ; \
                    net-tools \
                    iputils \
                    vim \
-                   mlocate \
                    git \
                    sudo \
                    openssh-server \
                    resalloc \
                    psmisc \
                    nginx \
-                   python3-ipdb \
                    findutils \
                    tini \
 # to get more entropy for generation of gpg keys

docker/builder/Dockerfile

@@ -1,4 +1,4 @@
-FROM registry.fedoraproject.org/fedora:39
+FROM registry.fedoraproject.org/fedora:41
 MAINTAINER [email protected]
 
 ARG ADDITIONAL_COPR_REPOSITORIES="@copr/copr-dev"
@@ -16,7 +16,6 @@ RUN set -ex ; \
                    which \
                    wget \
                    vim \
-                   python3-ipdb \
 # builder packages
                    openssh-server \
                    fedora-packager \

docker/distgit/Dockerfile

@@ -1,4 +1,4 @@
-FROM registry.fedoraproject.org/fedora:39
+FROM registry.fedoraproject.org/fedora:41
 MAINTAINER [email protected]
 
 ARG ADDITIONAL_COPR_REPOSITORIES="@copr/copr-dev"
@@ -19,7 +19,6 @@ RUN set -ex ; \
                    vim \
                    cgit \
                    python3-rpkg \
-                   python3-ipdb \
                    tini \
                    && \
     dnf -y install copr-dist-git && \

docker/frontend/Dockerfile

@@ -1,4 +1,4 @@
-FROM registry.fedoraproject.org/fedora:39
+FROM registry.fedoraproject.org/fedora:41
 MAINTAINER [email protected]
 
 ARG ADDITIONAL_COPR_REPOSITORIES="@copr/copr-dev"
@@ -22,7 +22,6 @@ RUN set -ex ; \
                    yum \
                    sudo \
                    python3-alembic \
-                   python3-ipdb \
                    python3-anytree \
                    postgresql-server \
                    redis \

docker/keygen/Dockerfile

@@ -1,4 +1,4 @@
-FROM registry.fedoraproject.org/fedora:39
+FROM registry.fedoraproject.org/fedora:41
 
 MAINTAINER [email protected]
 

docker/resalloc/Dockerfile

@@ -1,4 +1,4 @@
-FROM registry.fedoraproject.org/fedora:39
+FROM registry.fedoraproject.org/fedora:41
 MAINTAINER [email protected]
 
 # Deployment instructions are described here