Deb packaging: please don't require `gnome-keyring` package

[LebedevRI]

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Gnome-keyring is but one of the implementations that can act as a Secret Service,
while it makes sense to recommend that an implementation is installed,
it is not good that a particular implementation is forcibly required to be installed.

Please, consider changing

python-proton-keyring-linux/debian/control

Line 11 in 1534c2f

Depends: ${python3:Depends}, ${misc:Depends}, python3-proton-core, python3-keyring, python3-secretstorage, gnome-keyring

-Depends: ${python3:Depends}, ${misc:Depends}, python3-proton-core, python3-keyring, python3-secretstorage, gnome-keyring
+Depends: ${python3:Depends}, ${misc:Depends}, python3-proton-core, python3-keyring, python3-secretstorage

The suggestion to install the implementation would already appear (via python3-secretstorage dep):

$ apt-cache show python3-secretstorage | grep Suggests
Suggests: default-dbus-session-bus | dbus-session-bus, gnome-keyring | kwallet6 | libkf5wallet-bin (>= 5.97) | keepassxc-full, python-secretstorage-doc

Thanks!