deps: bump dependencies

[jssotomdz]

special attention on gtkmm which was limited to v4 but now some apps (system monitor for now) require the new version

[sergio-costas]

Looks good, although I would also check if atkmm can be updated too, because the limit version there was due to gtkmm.

[jssotomdz]

I would also check if atkmm can be updated too

looks up to date

[sergio-costas]

Mmm... odd... then, why is there that "2.53.3" version limit...?

[seb128]

Mmm... odd... then, why is there that "2.53.3" version limit...?

Seems like to workaround a bug in the upstream repository? Current version is 2.36 but

c6ecc83d · 2.53.3 · 7 years ago

[seb128]

Thanks. I've one small tweak ask but it's looking good otherwise

[seb128]

Thanks!