builder: use correct ssh keys for age

.sops.yaml

@@ -1,7 +1,7 @@
 keys:
   - &primary age1ee5udznhadk6m7jtglu4709rep080yjyd2ukzdl8jma4mm92y3psv0slpg
   - &aspi-ssh age1q8lc5340gz5xw2f57nglrss68wv0j0hf36py2pdtrl6ky3yrq9qqk0njr4
-  - &builder-ssh age1fnheprr07z0hewtzcg6ec60shrt037zk9qtxj6kpzfh2zzmtvppqhcxw2j
+  - &builder-ssh age1vwanu6jm80jzwe78jzz7z9vuzlg94tl7rpdg34vjmxcrnhddxu9q5zaf49
   - &kardorf-ssh age15lxw97z03q40xrdscnxqqugh5ky5aqrerg2t2rphkcqm6rnllurq8v98q5
 
 creation_rules:

hosts/builder/secrets.yaml

@@ -6,22 +6,22 @@ sops:
     age:
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBRcXJUdExWL0NWQ3Z0YWVp
-            TTloN1puMlBIMVhqTFlZQ0s5U3ZjTUF1ZXl3CkdxNnRvajQyZzA2K3dNV21sMys2
-            bHhUUjZ5Z0VPWnNieStYS3RFK2QxNFkKLS0tICtWWkRvdUdkS3p1VldJODdFcGQ1
-            d1pnL2VEd0ovQmFRNDZtQUc2SGxCb0UKSokwGWn3+L7S7wEqUTfcGKsR+LHsI5qs
-            z0w+LHK7T2s6WXC/tRgcrlG9ZjL/2hXXJrudvUFTM7wgrteDsPygXg==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBZdmJZU3pNTWhhb21YTFBy
+            dXhPaTV0ZFkxSlFMNjNkRXRnMjArWFRVMXprCnN6MjdkWDZNL3ljZ05zdVpXVWxr
+            NHdmTkp1L1RvQ2xIRkNqU2doNTE5U00KLS0tIHY3YnlPdndHS0M4S3F4aEJRa1hL
+            YXgyb3ZBeTNYc2xMNHk0ekF2TDlmaVUKIRWYeu2Vjr2VnrtClOj8RUG5B7Qlejk9
+            hmjPS5fINZzHyTJpoXhJ0PbZtJlfyKzo8h5Mco3deOBee9klimO8wA==
             -----END AGE ENCRYPTED FILE-----
           recipient: age1ee5udznhadk6m7jtglu4709rep080yjyd2ukzdl8jma4mm92y3psv0slpg
         - enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSA0ZExnQ3A1UDB4WU1sVGw0
-            YVcrU3d6TmtqeDA1eXlxNjc1RS9aUU05U0gwCk9vMVM3a21UZzBMTFFET253czZZ
-            T0VhUkFQZWFEaUxGMjdrR1JrVzI4MWMKLS0tIDArR21XVEFXcWdGTHp3ZlArcTZI
-            R1lEeHpvYlV0TkRGWjlyZHYxaVhjOHcKNJjmQvXqDW9bHHLkiI3TyzF/v2IlwNkY
-            sIJDGzCPLd8QRUV9Zi/ubtF89q8m6FUdbysGlhaEPuTW7lmz0usWbw==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSAzcElRNkEvYWNqSVRJTW1R
+            d0J4ZVh3UnNJdFBqK0xjTTZ6eFlnamRxTWpZCnB1T2h2bUVOSFROUzQvQzdiT0FF
+            R2xnQ0FEZGN5aTJNZXJ3RU5hQkowbWcKLS0tIExkVkxVYTBSd05aSldGMVdtSkZ3
+            NGVDWjFJYTh3Y1FVQ21qcmwxNnM4QkUKtqNaMy0coCthCo+qFWzh5oXgjtBeJD3B
+            1SagIF/R0ivN5A2gJTf4d5KgHZCWWib+k7ci6OuZyBQvLUkPkCsdPA==
             -----END AGE ENCRYPTED FILE-----
-          recipient: age1fnheprr07z0hewtzcg6ec60shrt037zk9qtxj6kpzfh2zzmtvppqhcxw2j
+          recipient: age1vwanu6jm80jzwe78jzz7z9vuzlg94tl7rpdg34vjmxcrnhddxu9q5zaf49
     lastmodified: "2026-07-19T11:55:37Z"
     mac: ENC[AES256_GCM,data:gchjWA8vrfS5FvIXbHgXNamkFWTWgBTTtI2FBkf/keRp6+oZwNFeb0QhFkylH24PMDsmjfw8SlH4AOkrYVilWMNq1GQbQNr36IOAvrrHUxnGA5rqn51Lk+9mSVkkWOpq7ivTVxEAfgLfNNKjvj+Ix54KVU44lCFHnAtS/+YxOrc=,iv:2Z1hgWBiHG1eG/lxW+y65T6i7Otu2D7zMy6Kr7+cCRA=,tag:xDooAEdvpGes5l80Ctk0eQ==,type:str]
     unencrypted_suffix: _unencrypted

hosts/builder/ssh_host_ed25519_key.pub

@@ -1 +1 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKrIJXIp4EWiWEg99MW5ykv14JgLWO4wPRofX+WZChQ+ root@builder
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINgH+4xJMk4K5uBIq4hKwar4wt6GYCRE3Z2S4HETc4TK root@builder