Beginning today I've been unable to connect to AUR via ssh:

git push using: aur:rocsolver.git master
aur@aur.archlinux.org: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

Output of ssh -v aur@aur.archlinux.org -o PubkeyAuthentication=yes -i ~/.ssh/nvme_posteo_rsa

OpenSSH_9.1p1, OpenSSL 1.1.1q 5 Jul 2022
debug1: Reading configuration data /home/torsten/.ssh/config
debug1: /home/torsten/.ssh/config line 23: Applying options for aur.archlinux.org
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Connecting to aur.archlinux.org [2a01:4f9:c010:50::1] port 22.
debug1: Connection established.
debug1: identity file /home/torsten/.ssh/nvme_posteo_rsa type 0
debug1: identity file /home/torsten/.ssh/nvme_posteo_rsa-cert type -1
debug1: identity file /home/torsten/.ssh/nvme_posteo_rsa type 0
debug1: identity file /home/torsten/.ssh/nvme_posteo_rsa-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_9.1
debug1: Remote protocol version 2.0, remote software version OpenSSH_9.0
debug1: compat_banner: match: OpenSSH_9.0 pat OpenSSH* compat 0x04000000
debug1: Authenticating to aur.archlinux.org:22 as 'aur'
debug1: load_hostkeys: fopen /home/torsten/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: sntrup761x25519-sha512@openssh.com
debug1: kex: host key algorithm: ssh-ed25519
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: SSH2_MSG_KEX_ECDH_REPLY received
debug1: Server host key: ssh-ed25519 SHA256:RFzBCUItH9LZS0cKB5UE6ceAYhBD5C8GeOBip8Z11+4
debug1: load_hostkeys: fopen /home/torsten/.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug1: Host 'aur.archlinux.org' is known and matches the ED25519 host key.
debug1: Found key in /home/torsten/.ssh/known_hosts:23
debug1: rekey out after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey in after 134217728 blocks
debug1: Will attempt key: /home/torsten/.ssh/nvme_posteo_rsa RSA SHA256:F8fB8JNKgOT8kQFB5HALvYx+oVHPB5AHJJPLaeXv414 explicit
debug1: Will attempt key: /home/torsten/.ssh/nvme_posteo_rsa RSA SHA256:F8fB8JNKgOT8kQFB5HALvYx+oVHPB5AHJJPLaeXv414 explicit
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,sk-ssh-ed25519@openssh.com,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ecdsa-sha2-nistp256@openssh.com,webauthn-sk-ecdsa-sha2-nistp256@openssh.com>
debug1: kex_input_ext_info: publickey-hostbound@openssh.com=<0>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering public key: /home/torsten/.ssh/nvme_posteo_rsa RSA SHA256:F8fB8JNKgOT8kQFB5HALvYx+oVHPB5AHJJPLaeXv414 explicit
debug1: Authentications that can continue: publickey
debug1: Offering public key: /home/torsten/.ssh/nvme_posteo_rsa RSA SHA256:F8fB8JNKgOT8kQFB5HALvYx+oVHPB5AHJJPLaeXv414 explicit
debug1: Authentications that can continue: publickey
debug1: No more authentication methods to try.
aur@aur.archlinux.org: Permission denied (publickey).