fix: bump docker-api crate to git ref

[johnrwatson]

Ref: Discord issue regarding issues with SI Launcher.

Bump models to v1.43 was merged into the docker-api crate on 10th June
The commit/change never made it into the crate itself, being last published on 5th June (0.14.0): There isn't a version of this crate with the updated option config in it

To that end, moved to using a git reference off HEAD for the build.

NB: It's noteworthy we have two different crates for docker-api interaction across our monorepo: bollard and docker-api. I suggest at some point we consolidate these/use the most common one.

Added :si build target for Buck for convenience

~/D/RISCOSPi.5.28 > si update
System Initiative Launcher is in "local" mode


The application panicked (crashed).
Message:  Unable to push events to Posthog: ()
Location: bin/si/src/main.rs:166

Backtrace omitted. Run with RUST_BACKTRACE=1 environment variable to display it.
Run with RUST_BACKTRACE=full to include source snippets.
Error: 
   0: docker api: missing field `VirtualSize` at line 1 column 1626
   1: missing field `VirtualSize` at line 1 column 1626

Location:
   bin/si/src/main.rs:138

Backtrace omitted. Run with RUST_BACKTRACE=1 environment variable to display it.
Run with RUST_BACKTRACE=full to include source snippets.

[johnrwatson]

Confirmed expected fix is in downstream package:

    /// Total size of the image including all layers it is composed of.
    ///
    /// In versions of Docker before v1.10, this field was calculated from
    /// the image itself and all of its parent images. Images are now stored
    /// self-contained, and no longer use a parent-chain, making this field
    /// an equivalent of the Size field.
    ///
    /// Deprecated: this field is kept for backward compatibility, and will be removed in API v1.44.
    pub virtual_size: Option<i64>,

Confirmed via buck2 run //bin/si <commands> that the CLI still functions at a basic level/no major regressions

[johnrwatson]

bors merge

[si-bors-ng]

Build succeeded:

• buildkite/si-merge-queue

[nickgerace]

Great PR description too! We need more of these.