Fix git error in stream jobs

New versions of git refuse to run on git repos owned by a user
other than the caller.  This is due to a fix for
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24765

The stream jobs install Zuul as root while the repo is owned by
zuul.  This causes pbr to run git which runs afoul of that issue.
To correct this, run a wheel build as the zuul user first and
install the wheel.

Change-Id: Id48245f715760c436ae46415f057358e1b687181

playbooks/zuul-stream/pre.yaml

@@ -9,10 +9,20 @@
 
   post_tasks:
 
-    - name: Install software
+    - name: Install pip
       shell: |+
         python3 -m pip install --upgrade pip setuptools wheel
-        python3 -m pip install src/opendev.org/zuul/zuul
+      become: yes
+
+    - name: Build wheel
+      shell:
+        chdir: src/opendev.org/zuul/zuul
+        cmd: |+
+          python3 setup.py bdist_wheel
+
+    - name: Install software
+      shell: |+
+        python3 -m pip install src/opendev.org/zuul/zuul/dist/*.whl
       become: yes
 
     - name: Install managed ansible versions