fix(osfamily): oscodename only if present

Author: Adrien "ze" Urban

vault/osfamilymap.yaml

@@ -3,10 +3,12 @@
 ---
 Debian:
   setcap_pkg: libcap2-bin
+{% if "oscodename" in grains %}
   repo: 'deb [arch={{ grains["osarch"] }}] https://apt.releases.hashicorp.com
          {{ grains["oscodename"] }} main'
   repo_key: "https://apt.releases.hashicorp.com/gpg"
   repo_configfile: /etc/vault.d/vault.hcl
+{% endif %}
 
 Suse:
   gpg_pkg: gpg2