fix: sort attributes alphabetically

Chart.yaml

@@ -1,3 +1,4 @@
+---
 annotations:
   artifacthub.io/license: MIT
   artifacthub.io/links: |
@@ -5,26 +6,24 @@ annotations:
       url: https://github.com/gomods/athens
     - name: support
       url: https://git.cryptic.systems/volker.raschek/athens-proxy-charts/issues
-  artifacthub.io/operator: "false"
-  artifacthub.io/prerelease: "false"
+  artifacthub.io/operator: 'false'
+  artifacthub.io/prerelease: 'false'
   artifacthub.io/signKey: |
     fingerprint: 3B0CE9853CAD76076260025383D342258456906E
     url: https://keys.openpgp.org/vks/v1/by-fingerprint/3B0CE9853CAD76076260025383D342258456906E
 apiVersion: v2
-name: athens-proxy
+appVersion: v0.17.1
 description: Athens proxy server for golang
-type: application
-version: "0.1.0"
-appVersion: "v0.17.1"
 icon: https://github.com/gomods/athens/blob/main/docs/static/banner.png?raw=true
-
 keywords:
-- golang
-- athens
-- gomod
-- go-proxy
-
+  - golang
+  - athens
+  - gomod
+  - go-proxy
+name: athens-proxy
 sources:
-- https://git.cryptic.systems/volker.raschek/athens-proxy-charts
-- https://github.com/gomods/athens
-- https://hub.docker.com/r/gomods/athens
+  - https://git.cryptic.systems/volker.raschek/athens-proxy-charts
+  - https://github.com/gomods/athens
+  - https://hub.docker.com/r/gomods/athens
+type: application
+version: 0.1.0