Daily insecurity email: Setuid changes: /usr/bin/ssh-agent

I noticed this email message this morning:
> Subject: mjoelnir.fritz.box daily insecurity output
> From: "Charlie Root @ mjoelnir_aa1667" ...
> To: ...
> Date: Fri, 07 Jun 2024 01:32:17 +0200 (CEST)
>
>
> Running security(8):
>
> Setuid changes:
> -r-x--s--x 1 root _sshagnt 435040 May 20 14:18:15 2024 /usr/bin/ssh-agent
> -r-x--s--x 1 root _sshagnt 435040 Jun 6 12:07:27 2024 /usr/bin/ssh-agent

It's true:
mjoelnir:2024 7.06 14:00:57 % stat -x /usr/bin/ssh-agent
File: "/usr/bin/ssh-agent"
Size: 435040 FileType: Regular File
Mode: (2511/-r-x--s--x) Uid: ( 0/ root) Gid: ( 34/_sshagnt)
Device: 4,21 Inode: 156169 Links: 1
Access: Fri Jun 7 01:30:01 2024
Modify: Thu Jun 6 12:07:27 2024
Change: Thu Jun 6 12:07:27 2024

mjoelnir:2024 7.06 16:10:01 % ls -ltra /usr/bin | tail
-r-xr-xr-x 1 root bin 191200 May 19 23:41 info*
-r-xr-xr-x 1 root bin 24000 May 19 23:41 infokey*
-r-xr-xr-x 1 root bin 281960 May 19 23:41 makeinfo*
-r-xr-xr-x 1 root bin 31568 May 19 23:41 install-info*
-r-xr-xr-x 1 root bin 30560 May 19 23:41 texindex*
-r-xr-xr-x 1 root bin 28070 May 19 23:41 texi2dvi*
-r-xr-xr-x 1 root bin 665 May 19 23:41 texi2pdf*
drwxr-xr-x 16 root wheel 512 May 20 00:31 ../
-r-x--s--x 1 root _sshagnt 435040 Jun 6 12:07 ssh-agent*
drwxr-xr-x 2 root wheel 6144 Jun 6 12:07 ./

Is that not a bit weird? Why would ssh-agent have changed / been
"touched"? Maybe that's when I booted the system ... Does it make sense
that starting an executable would cause its mtime to be set?

Just wondering ...

Cheers,
Robb.