Merge ~mthaddon/autocert-charm/+git/autocert-charm:build-series into autocert-charm:master

[Tom Haddon]

Update charmcraft so the charm builds for supported series

Update charmcraft so the charm builds for supported series.

Latest published version only claims to support 22.04 due to changes in charmcraft.yaml. This restores the ability to deploy on supported series.

[🤖 Canonical IS Merge Bot (canonical-is-mergebot)]

This merge proposal is being monitored by mergebot. Change the status to Approved to merge.

[🤖 Canonical IS Review Bot (canonical-is-reviewbot)]

Proxy approval for axino

review: Approve

[🤖 Canonical IS Merge Bot (canonical-is-mergebot)]

Change successfully merged at revision 2a127ef7dd6fc82f24b49203c3a565326dc17df7

diff --git a/charmcraft.yaml b/charmcraft.yaml
index 9a0f297..a9e8c86 100644
--- a/charmcraft.yaml
+++ b/charmcraft.yaml
@@ -1,13 +1,17 @@
 type: "charm"
 bases:
-  - name: "ubuntu"
-    channel: "16.04"
-  - name: "ubuntu"
-    channel: "18.04"
-  - name: "ubuntu"
-    channel: "20.04"
-  - name: "ubuntu"
-    channel: "22.04"
+  - build-on:
+    - name: ubuntu
+      channel: "18.04"
+    run-on:
+    - name: ubuntu
+      channel: "16.04"
+    - name: ubuntu
+      channel: "18.04"
+    - name: ubuntu
+      channel: "20.04"
+    - name: ubuntu
+      channel: "22.04"
 parts:
   charm:
     source: .