MDBF-779 Add opensuse-15.5 and sles-15.5

Need to go back a python version to maintain support with 15.6.

.github/workflows/build-opensuse.pip-based.yml

@@ -27,9 +27,16 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - image: opensuse/leap:15.5
+            platforms: linux/amd64
+            tag: opensuse15.5
+            nogalera: true
+
           - image: opensuse/leap:15.6
             platforms: linux/amd64
             tag: opensuse15
+            nogalera: false
+
     uses: ./.github/workflows/bbw_build_container_template.yml
     with:
       dockerfile: opensuse.Dockerfile pip.Dockerfile

.github/workflows/build-sles.pip-based.yml

@@ -28,9 +28,16 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - image: registry.suse.com/bci/bci-base:15.5
+            platforms: linux/amd64, linux/s390x
+            tag: sles15.5
+            nogalera: true
+
           - image: registry.suse.com/bci/bci-base:15.6
             platforms: linux/amd64, linux/s390x
             tag: sles15
+            nogalera: false
+
     uses: ./.github/workflows/bbw_build_container_template.yml
     with:
       dockerfile: sles.Dockerfile pip.Dockerfile

ci_build_images/opensuse.Dockerfile

@@ -49,8 +49,8 @@ RUN zypper update -y \
     pcre2-devel \
     perl-Net-SSLeay \
     policycoreutils \
-    python312-devel \
-    python312-pip \
+    python311-devel \
+    python311-pip \
     rpm-build \
     rpmlint \
     snappy-devel \

ci_build_images/sles.Dockerfile

@@ -47,8 +47,8 @@ RUN zypper -n update \
     pcre2-devel \
     perl-Net-SSLeay \
     policycoreutils \
-    python312-devel \
-    python312-pip \
+    python311-devel \
+    python311-pip \
     rpm-build \
     rpmlint \
     snappy-devel \