Merge ~xavpaice/graylog-snap:release-3.x into ~canonical-is-sa/graylog-snap:master

[Xav Paice]

update to 3.3.15-1
Includes mitigation for cve-2021-44228

Unmerged commits

af4aa86... by Xav Paice on 2021-12-13

update to 3.3.15-1

diff --git a/snapcraft.yaml b/snapcraft.yaml
index f46a0af..9f5bfe3 100644
--- a/snapcraft.yaml
+++ b/snapcraft.yaml
@@ -1,5 +1,6 @@
 name: graylog
-version: 3.0.1
+base: core18
+version: 3.3.15-1
 summary: Graylog server snap, https://www.graylog.org/
 description: |
   Graylog is a full-featured log management system allowing for centralized
@@ -24,9 +25,9 @@ apps:
 parts:
   graylog-repository:
     plugin: nil
-    build: |
-      wget https://packages.graylog2.org/repo/packages/graylog-3.0-repository_latest.deb
-      dpkg -i graylog-3.0-repository_latest.deb
+    override-build: |
+      wget https://packages.graylog2.org/repo/packages/graylog-3.3-repository_latest.deb
+      dpkg -i graylog-3.3-repository_latest.deb
       apt update
     build-packages:
       - wget