sops: darwin: switch to SSH host keys

I've decided to just create some ssh host keys via `sudo ssh-keygen -A`
to make the key management parallel to linux hosts.

common/secrets.yaml

@@ -5,29 +5,38 @@ sops:
         - recipient: age1q80zzsgglj438verw74jghezn8ndpqldvg0mfxzwtaq4v5h7apusqysavz
           enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSByRnd4VXRwWXpaK2piQW5C
-            b2xHSlYzb0VzLzJrNlFhanhTa2VScEIxc0RjCkhMSXJvbkR6Z3hUb2NzSmlTSUpJ
-            YWIwMTN3OXNWVi9IczRXK0ppSmtINk0KLS0tIGtHQmg0cnhIR2NkbC9QSzV4aGs2
-            OGs2S295VklPUW1TSlJZWGVqbmJFbmMK42pKH+iTIhkKjgLuEtZamK0vxThXzmET
-            521yJh5mOaJu7H55Fp+F4TWWjnwVKKqmipJ0k5eMXVoMTldcYWoOhg==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBuc0xqeEx2eUNZVkpaQXhY
+            a1BDOTUwRHZkU2M4Z0cvUTFCcjNEN2RKa1JVCmZlYlY5djQ2SnJSZnBWd1JIVXJS
+            K2hPT3JXRjIyUzFoRmZhdnUveVFlOGMKLS0tIEQ2SElPTUdxR1dEeUxBVHF3di9u
+            aDBzbzZMMlF2USszeS9mTGFIalhpOU0KNUrIv6ffhifLcgdk+/CXgXQ4Aod587aL
+            kB/y59HdprNelD2Uzw4/PkalOHSO1OVpi+NLRGgYw8IOPdV7iNVo3Q==
             -----END AGE ENCRYPTED FILE-----
         - recipient: age1fft2ynhazjwtjmxsvt37qervtekktdln2968gjp4vcp5sp3jeg5segkz3x
           enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBkRFRLdFdOS2UzbWwrNDRu
-            Y0YwRDBkd2lnN1FyR0w1MTNYTldzUndqckNFCnlzSVQvNkx4WDk3RXhWNkdGMjFL
-            bjVsbHJ3VjZqRXFTZE9ma2lCQ2ZXNlkKLS0tIHlCMS8vYUhqMklGbk5oT2dEd2pl
-            MlJLSkt4azdkcW5rOWVIMm1HVW1uazAK45zntYris4tcP26DGCBmjIAIKUxMVrsR
-            mpSTAfK1nt8/UcGft+qqqrAEVzvYooUvBa5vxDsY7qTyAzibP4MFWw==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSB5MzlIUENGemVXbjZ2ZXpw
+            RDkvZnF5aUxmWjU2Sk5pS1dQaW81ZnpYNkZnCjh5czF4cVVMd0xxejkzMWs2QkFF
+            K0lxcEY4cHpnblZ6Tk1BSHJhUEF2dVUKLS0tIEFxcUxtOE85TitoVWM2RlYxSi9S
+            YXpTLysxR3FzNHEzZ0tMdHI0SVk1UmMKZT3hZNrUkh803EYaYfdhiAfJOljTFUsp
+            JqmxLLBnxclCFsHtq678+4akr7tFlEnQi8aWeH+HjK+R8ngSa1G7ew==
+            -----END AGE ENCRYPTED FILE-----
+        - recipient: age1rpygw5lkhc0a5hq8fuhjzy57ls7pn5u76097z6g2p4nmlctl8pvsxrztd8
+          enc: |
+            -----BEGIN AGE ENCRYPTED FILE-----
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSA2R0lDdjMxZDRGM1RucE9R
+            eUtwQW84RlZNUmEvbUpGRTduYTdIMk5FN1I4CmFtMWEyVEhmYitiY0ZpUDZuQVo2
+            VTVZcjlQVi93RTdLb2RJL0s0Q3FjRm8KLS0tIG5SOEVXRGpMQnNnS3IrUUNpUjZw
+            L1A0emlvWndoNVNTaW43NlhHSXFqQUUKhvkRYZV6QADm+pYIdfeg4s56YyDSUhJn
+            Az9wpLX8G8iesFgEHl/TsN8jZZls+LxMoMg5NxfIzQgdvR5I/s8BzQ==
             -----END AGE ENCRYPTED FILE-----
         - recipient: age1kx93vp8l8jd6kz0kvk379udr5z8a9t6946w0ff5t9a2esn47nqzqlfzvwe
           enc: |
             -----BEGIN AGE ENCRYPTED FILE-----
-            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBHbUg1eUFuczJaR29UMyta
-            c0ZiNDNBTkxQSDNIZThhQ3ZUSmc4dGdKTkRjCmtlUTV0d3JkQzJXemxDMFEvM3Qr
-            UVRqdkZ2UDB5MVpva2FhUTlpelN2cjQKLS0tIE1kOVVXRjlFNDhxdC9HTGFjTENh
-            Zm9Wb1lrSSsvZ2gzVnZ0UnN0cUFVbUUK2Xqn6cjrUxK+ku3LgfbpUt+Vkdv9vEGe
-            R8iG40k2T4RSa53dHwfRG3eg3ubTA8d1NFZ5qUpkmhFPZ5cq89x4ig==
+            YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSBYUytMcmJiUHhEZWVRYmhE
+            ZFdWSlIxeHFiTkFzLzlmbEpNMkFzVFRDUEc4ClhXVEtjbXJDdENkb2QraWxJWnF2
+            RmxrbEdSSXlnUkdjTXVVRUZjMHF1V3MKLS0tIGFUUncvc2NtV2JUbG50VHIyYlM0
+            RFVNWXRrVTI1cmtoUWphLzVXMFA3RDAKD+72BEHYBhm9ncbO/F5AclbvT9hU5kZb
+            LGm6HK/Yw+b73Odix+0UDAGV8QTdXweWfb6L406WSkJjaR3F7Ki6SQ==
             -----END AGE ENCRYPTED FILE-----
     lastmodified: "2026-04-05T22:12:29Z"
     mac: ENC[AES256_GCM,data:5do9aK676jnIpaOldsL72W68BLKlWISBeeVglRCVtvYq/gmcmLAIESJli6XIRAURJmX7O61VnBDr5uGmH3jV0cb7s8zd6mxnWJOsnPIiKMNFiDg57W72R4iNsdeYINu6Y9HFfkXcI6HkP2eHdpzsVmmDvT7WuGS0Q6HgpbAbygM=,iv:DPdmA8LuSTNNsV0OTShi2pifhxpbITRbZAKYszDrFIU=,tag:fsOFaubD+LWG1pja6ttYYg==,type:str]