Move more stuff to pre-run for resillience (#5658)

.zuul.d/jobs.yaml

@@ -2,7 +2,7 @@
     name: pyca-cryptography-base
     abstract: true
     description: Run pyca/cryptography unit testing
-    pre-run: .zuul.playbooks/playbooks/clone-wycheproof/main.yaml
+    pre-run: .zuul.playbooks/playbooks/tox/pre.yaml
     run: .zuul.playbooks/playbooks/tox/main.yaml
 
 - job:

.zuul.playbooks/playbooks/clone-wycheproof/main.yaml

@@ -1,7 +0,0 @@
-- hosts: all
-  tasks:
-    - name: Clone wycheproof
-      git:
-        repo: https://github.com/google/wycheproof
-        dest: "{{ ansible_facts.env['HOME'] }}/wycheproof"
-        depth: 1

.zuul.playbooks/playbooks/tox/main.yaml

@@ -1,32 +1,5 @@
 - hosts: all
   tasks:
-
-    - name: Install tox
-      include_role:
-        name: ensure-tox
-
-    - name: Install required packages
-      package:
-        name:
-          - build-essential
-          - libssl-dev
-          - libffi-dev
-          - python3-dev
-      become: yes
-      when: ansible_distribution in ['Debian', 'Ubuntu']
-
-    - name: Install required packages
-      package:
-        name:
-          - redhat-rpm-config
-          - gcc
-          - libffi-devel
-          - openssl-devel
-          - python3-devel
-          - python2-devel
-      become: yes
-      when: ansible_distribution == 'CentOS'
-
     - name: Run tox
       include_role:
         name: tox

.zuul.playbooks/playbooks/tox/pre.yaml

@@ -0,0 +1,34 @@
+- hosts: all
+  tasks:
+    - name: Clone wycheproof
+      git:
+        repo: https://github.com/google/wycheproof
+        dest: "{{ ansible_facts.env['HOME'] }}/wycheproof"
+        depth: 1
+
+    - name: Install tox
+      include_role:
+        name: ensure-tox
+
+    - name: Install required packages
+      package:
+        name:
+          - build-essential
+          - libssl-dev
+          - libffi-dev
+          - python3-dev
+      become: yes
+      when: ansible_distribution in ['Debian', 'Ubuntu']
+
+    - name: Install required packages
+      package:
+        name:
+          - redhat-rpm-config
+          - gcc
+          - libffi-devel
+          - openssl-devel
+          - python3-devel
+          - python2-devel
+      become: yes
+      when: ansible_distribution == 'CentOS'
+