This prevents volume keys on the machine from repeating.
Full modalias:
```
$ cat /sys/class/dmi/id/modalias
dmi:bvnLENOVO:bvrMMCN36WW:bd03/26/2024:br1.36:efr1.30:svnLENOVO:pn21KH:pvrThinkBook16G6IRL:rvnLENOVO:rnLNVNB161216:rvrSDK0T76530WIN:cvnLENOVO:ct10:cvrThinkBook16G6IRL:skuLENOVO_MT_21KH_BU_idea_FM_ThinkBook16G6IRL:
```
evdev:atkbd:dmi:bvn*:bvr*:svnLENOVO:*:pvrIdeaPadFlex5*
# Lenovo Yoga S940 (9th gen)
evdev:atkbd:dmi:bvn*:bvr*:svnLENOVO:pn81Q7*:pvrLenovoYogaS940:*
+# Lenovo ThinkBook 16G6IRL
+evdev:atkbd:dmi:bvn*:bvr*:svnLENOVO:pn21KH*:pvrThinkBook16G6IRL:*
KEYBOARD_KEY_a0=!mute
KEYBOARD_KEY_ae=!volumedown
KEYBOARD_KEY_b0=!volumeup