Resizing /boot: At least 8MB more space needed on the /boot filesystem.

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I think I need to expand my /boot partition. What is the safest way of doing so given an LVM on LUKS partition scheme? The partition scheme is listed at the bottom of this post.

After trying to upgrade my system with sudo dnf upgrade, I get the following error message:

$ sudo dnf upgrade
At least 8MB more space needed on the /boot filesystem.

The output of df -h /boot is

$ df -h /boot
Filesystem      Size  Used Avail Use% Mounted on
/dev/nvme0n1p1  239M  196M   27M  89% /boot

I have tried deleting old kernels as described in the next link, but the dnf remove command dnf remove $( dnf repoquery --installonly --latest-limit -1 -q )doesn't work: https://ask.fedoraproject.org/en/ques...

NAME                                          MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINT
nvme0n1                                       259:0    0 238.5G  0 disk  
├─nvme0n1p1                                   259:1    0   250M  0 part  /boot
├─nvme0n1p2                                   259:2    0   144M  0 part  /boot/efi
└─nvme0n1p3                                   259:3    0 238.1G  0 part  
  └─luks-aaaaaaaaaaaaaaaaaaaaaaaaa 253:0    0 238.1G  0 crypt 
    ├─lvg-root                                253:1    0    13G  0 lvm   /
    ├─lvg-swap                                253:2    0    10G  0 lvm   [SWAP]
    └─lvg-home                                253:3    0 215.1G  0 lvm   /home