I am not sure if this is because some permission issues on some directory used by yay or it is due to the fact that the librewolf-bin package is flagged out-of-date:
3 aur/burpsuite 2022.3-1 -> 2022.3.6-1
2 aur/dxvk-bin 1.10-1 -> 1.10.1-1
1 aur/librewolf-bin 98.0.1-1 -> 100.0-2
==> Packages to exclude: (eg: "1 2 3", "1-3", "^4" or repo name)
==>
:: Checking for conflicts...
:: Checking for inner conflicts...
[Aur:3] burpsuite-2022.3.6-1 dxvk-bin-1.10.1-1 librewolf-bin-100.0-2
:: (0/3) Downloaded PKGBUILD: burpsuite
:: (0/3) Downloaded PKGBUILD: librewolf-bin
:: (0/3) Downloaded PKGBUILD: dxvk-bin
-> error fetching burpsuite: fatal: could not create work tree dir 'burpsuite': Permission denied
context: exit status 128
error fetching librewolf-bin: fatal: could not create work tree dir 'librewolf-bin': Permission denied
context: exit status 128
error fetching dxvk-bin: fatal: could not create work tree dir 'dxvk-bin': Permission denied
context: exit status 128