CI: Bump ansible-lint to 26.x

Change-Id: I5f20b51346eb58d4a5cbf921b5387beb1056b24e
Signed-off-by: Pierre Riteau <pierre@stackhpc.com>

Author: priteau

test-requirements.txt

@@ -2,7 +2,7 @@
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
 
-ansible-lint>=25.0.0,<26.0.0 # MIT
+ansible-lint>=26.0.0,<27.0.0 # MIT
 bandit>=1.1.0 # Apache-2.0
 bashate>=0.2 # Apache-2.0
 coverage>=4.0 # Apache-2.0