Update inferno dependency to 0.11.19

[SergejIsbrecht]

Update to latest inferno version to include 0.11.12 in order to increase flamegraph.svg rendering performance

jonhoo/inferno#262

[djc]

Since this is a semver-compatible version bump, there really is no need to change Cargo.toml. Also, using cargo install to install the flamegraph/cargo-flamegraph binaries off of crates.io should already be using latest inferno 0.11.x without this change, so I don't think this a very useful change.

[SergejIsbrecht]

@djc , I have to cross compile for aarch64, therefore I can not use cargo install

Edit:
It seems I can add --target, which should do the job. I will verify whether cargo install with --target works as you described.

Edit:
When using cargo install flamegraph -v it seems inferno indeed is used in version 0.11.19
Compiling inferno v0.11.19

Sorry for the inconvenience.