build(deps): update capnp requirement from 0.14.0 to 0.16.1 in /gst-depth-meta-rs

Updates the requirements on capnp to permit the latest version.

Commits

• c8508c2 prepare for capnp-v0.16.1 release
• 28978ac Merge pull request #383 from capnproto/miri-debug
• 3665562 add comments
• e54a74d fix miri 'stacked borrow' errors
• be0c63b Merge pull request #381 from marmeladema/elie/fix-miri-ignore-attr
• 10dd52e Fix miri ignore attribute
• 6c2d95b prepare for capnpc-v0.16.3 release
• 154ea5d add missing _has() methods for capability fields
• 90f387b Merge pull request #372 from danieleades/cargo
• a949790 remove unnecessary parentheses
• Additional commits viewable in compare view