Merge #3919

3919: [DEVOPS-1112] Bump applicationVersion 2 -> 3 for testnet r=jmitchell a=rvl

## Description

Update applicationVersion for an update proposal on testnet.

https://github.com/input-output-hk/internal-documentation/wiki/Daedalus-installer-history

## Linked issue

https://iohk.myjetbrains.com/youtrack/issue/DEVOPS-1112



Co-authored-by: Rodney Lorrimar <[email protected]>

Author: iohk-bors[bot]

lib/configuration.yaml

@@ -14929,7 +14929,7 @@ testnet_wallet: &testnet_wallet
   <<: *testnet_full
   update: &testnet_wallet_update
     applicationName: csl-daedalus
-    applicationVersion: 2
+    applicationVersion: 3
     lastKnownBlockVersion:
       bvMajor: 0
       bvMinor: 0