build(deps): update capnpc requirement from 0.14.2 to 0.17.1 in /gst-depth-meta-rs

Updates the requirements on capnpc to permit the latest version.

Commits

• 99ddcb4 prepare for capnpc-v0.17.1 release
• dd2f735 fix enum setters in the presence of defaults
• 1ce11c2 add message::Builder::initn_root()
• 359464d update readme
• 80e7574 shorten get_field_types() when there are no fields
• 88b15ae yet more clippy suggestions
• c798be0 more clippy suggestions
• 4f093f5 clippy suggestions
• 28306d7 update changelogs
• 508f706 move blog post from _drafts to _posts
• Additional commits viewable in compare view