Explicitly install SSH

Explicitly install the ssh client in all images. The 22.04 image was
missing it (likely due to --no-install-recommends). Also add an explict
test for it.

ci/test.py

@@ -1175,6 +1175,9 @@ def test_bb_env_extra_parse(self):
     def test_wine(self):
         self.assertPyrexContainerCommand("wine --version")
 
+    def test_ssh(self):
+        self.assertPyrexContainerCommand("ssh -V")
+
 
 class PyrexImageType_oegarmin(PyrexImageType_oe):
     """

image/Dockerfile

@@ -390,6 +390,8 @@ RUN set -x && export DEBIAN_FRONTEND=noninteractive && \
     python-crypto \
     python-six \
     python3-six \
+# Connectivity
+    ssh \
 # An updated version of Git (from the PPA source above)
 # that supports doing Yocto externalsrc recipes against free-
 # standing working copies that use Git worktrees.
@@ -459,6 +461,8 @@ RUN set -x && export DEBIAN_FRONTEND=noninteractive && \
     python-crypto \
     python-six \
     python3-six \
+# Connectivity
+    ssh \
 # An updated version of Git (from the PPA source above)
 # that supports doing Yocto externalsrc recipes against free-
 # standing working copies that use Git worktrees.
@@ -530,6 +534,8 @@ RUN set -x && export DEBIAN_FRONTEND=noninteractive && \
     python-crypto \
     python-six \
     python3-six \
+# Connectivity
+    ssh \
 # Corollary to the core Yocto gcc-multilib package. Allows various
 # prebuilt native tools to work
     g++-multilib \
@@ -616,6 +622,8 @@ RUN set -x && export DEBIAN_FRONTEND=noninteractive && \
     python-crypto \
     python-six \
     python3-six \
+# Connectivity
+    ssh \
 # Corollary to the core Yocto gcc-multilib package. Allows various
 # prebuilt native tools to work
     g++-multilib \
@@ -699,6 +707,8 @@ RUN set -x && export DEBIAN_FRONTEND=noninteractive && \
     findutils \
 # Required for some poorly written 3rd party recipes :(
     python3-six \
+# Connectivity
+    ssh \
 # Corollary to the core Yocto gcc-multilib package. Allows various
 # prebuilt native tools to work
     g++-multilib \