Describe the bug
xrGetInstanceProperties always seems to report a runtimeVersion of 0.1.0, rather than e.g. 1.23.4 as would be expected in order to determine which workarounds to apply.

To Reproduce
Steps to reproduce the behavior:

1. Start SteamVR
2. Run OpenXR Explorer
3. Observe that runtimeVersion is wrong

Expected behavior
runtimeVersion should be e.g. XR_MAKE_VERSION(1, 23, 4) on SteamVR 1.23.4.

System Information (please complete the following information):

• Distribution: Arch
• SteamVR version: beta 1.23.4
• Steam client version: Jun 27 2022 21:00
• Opted into Steam client beta?: Yes
• Graphics driver version: Mesa 22.1.2