build(docker): enable stabber for functional tests

- Enable stabber build from fork git.jabber.space/jabber.developer2/stabber
- Use fix/xmpp-parsing branch with XMPP stream parsing fixes
- Add tcl-expect-dev package for Debian/Ubuntu (required by libexpect)
- Add expect package for Arch Linux

Dockerfile.arch

@@ -34,7 +34,8 @@ RUN pacman -S --needed --noconfirm \
   sqlite \
   valgrind \
   gdk-pixbuf2 \
-  qrencode
+  qrencode \
+  expect
 
 RUN mkdir -p /usr/src/{stabber,profanity}
 
@@ -57,13 +58,13 @@ USER root
 RUN pacman -U --noconfirm libstrophe-git/libstrophe-git-*.pkg.tar.zst
 
 WORKDIR /usr/src
-#RUN git clone https://github.com/boothj5/stabber
+RUN git clone -c http.sslverify=false -b fix/xmpp-parsing https://git.jabber.space/jabber.developer2/stabber
 
-#WORKDIR /usr/src/stabber
-#RUN ./bootstrap.sh
-#RUN ./configure --prefix=/usr --disable-dependency-tracking
-#RUN make
-#RUN make install
+WORKDIR /usr/src/stabber
+RUN ./bootstrap.sh
+RUN ./configure --prefix=/usr --disable-dependency-tracking
+RUN make
+RUN make install
 
 WORKDIR /usr/src/profanity
 COPY . /usr/src/profanity