This update for steam fixes the following issues:

Steam was updated to version 1.0.0.66

* Bootstrap using updated Steam client:

- Client timestamp 1595977781 (2020-07-28)
- Steam Runtime version 0.20200604.0

* Update steam-devices subproject up to 2020-07-28

- Replace escaped double quotes in udev rules with single quotes, for
compatibility with udev < 235 and eudev.

- Add Recommends: bubblewrap, required by the experimental container
runtime system
- Switch to FirewallD

Update to version 1.0.0.63

* Update steam-devices subproject up to 2020-06-05

- Add HORIPAD for Nintendo Switch (thanks, @BrokenGale)
(Fixes: steam-for-linux#6944, steam-devices#7)
- Add ASTRO C40 controller (thanks, @exhumer2)
(Fixes: steam-devices#5)
- Add PowerA Nintendo Switch Controller (thanks, @blazingkin)
(Fixes: steam-devices#6)
- Add a workaround for PowerA Wireless Controller
(thanks, Andrey Smirnov) (Fixes: steam-devices#9; T21767)

* debian/steam-launcher.postinst: Notify udevd to reload its rules.
This means the steam-devices rules should take effect immediately,
instead of being deferred until after the next reboot. (T19535)

* bin_steam.sh: Don't overwrite steam.desktop if it's a symlink.
In a pre-configured distro like SteamOS, ~/Desktop/steam.desktop
might already be a symlink to /usr/share/applications/steam.desktop,
in which case overwriting it is pointless. (T21633)

Update to version 1.0.0.64

* steam.list: Download updates via https (T21740)
In older versions of apt (lower than 1.6) we need to install
apt-transport-https to use https repositories, so do that.
* steam.list: Switch the suite from precise to stable
(Fixes: steam-for-linux#4436)
* steam.list: Add commented-out apt sources for the beta launcher

- Added recommend lsb-release to provide OS info and to support hw survey boo#1157832

- Merge steam-controller and steam-vr into steam-devices like other distros.