Fix and cleanup testing config

Change-Id: I908d9cae73d2a12ebb07e5f078f7ff358cf1e307

metadata.yaml

@@ -11,8 +11,7 @@ tags:
 - file-servers
 - misc
 series:
-- focal
-- jammy
+- noble
 description: |
   Ceph is a distributed storage and network file system designed to provide
   excellent performance, reliability, and scalability.

tests/bundles/noble-caracal.yaml

@@ -21,6 +21,7 @@ machines:
   '9':
   '10':
   '11':
+    series: jammy
   '12':
   '13':
   '14':
@@ -55,7 +56,6 @@ applications:
 
   ceph-osd:
     charm: ../../ceph-osd.charm
-    channel: latest/edge
     num_units: 3
     storage:
       osd-devices: 'cinder,10G,2'
@@ -105,6 +105,7 @@ applications:
     to:
       - '11'
     channel: latest/edge
+    series: jammy
 
   glance:
     expose: True

tox.ini

@@ -47,21 +47,12 @@ commands =
     {toxinidir}/rename.sh
     charmcraft clean
 
-[testenv:py36]
-basepython = python3.6
-deps = -r{toxinidir}/requirements.txt
-       -r{toxinidir}/test-requirements.txt
 
 [testenv:py38]
 basepython = python3.8
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 
-[testenv:py39]
-basepython = python3.9
-deps = -r{toxinidir}/requirements.txt
-       -r{toxinidir}/test-requirements.txt
-
 [testenv:py310]
 basepython = python3.10
 deps = -r{toxinidir}/requirements.txt