chore: bump vault to v1.17.6 (#55)

Signed-off-by: guillaume <[email protected]>

rockcraft.yaml

@@ -1,7 +1,7 @@
 name: vault
 base: bare
 build-base: [email protected]
-version: "1.17.5"
+version: "1.17.6"
 summary: A ROCK container image for Vault
 description: |
   A ROCK container image for Vault, a tool for secrets management, encryption as a service, and privileged access management.
@@ -36,7 +36,7 @@ parts:
       - vault
       - ui
     source: https://github.com/hashicorp/vault.git
-    source-tag: v1.17.5
+    source-tag: v1.17.6
     source-type: git
     source-depth: 1
     stage: