test: install ansible collection from tar.gz package

To avoid galaxy server unstable issue, like 504 gateway timeout,
error when getting available versions of collection community.general,
download two required collection packages and install then locally

Signed-off-by: Xiaofeng Wang <[email protected]>

Author: henrywang

plans/install-upgrade.fmf

@@ -12,7 +12,7 @@ prepare:
       - python3-devel
       - unzip
   - how: shell
-    script: ansible-galaxy collection install community.general ansible.posix
+    script: ansible-galaxy collection install https://ansible-collection.s3.amazonaws.com/ansible-posix-1.5.4.tar.gz https://ansible-collection.s3.amazonaws.com/community-general-8.5.0.tar.gz
 execute:
   how: tmt