bump msrv 1.64 and tts + bindgen dep

[coderedart]

• bumps msrv to 1.64 in toolchain file and workflows
• manually bump bindgen dep using cargo update -p bindgen
• bump tts version to latest in egui_winit and eframe crates
• change runner image from ubuntu-latest to ubuntu-22.04

This is specifically to fix the speech-dispatcher crate compilation issues on platforms like Arch Linux.

We ended up at this PR due to the following series of events:

1. The main issue is that workflow uses ubuntu-20.04 which has an old version of library in its repository. but other distros like Arch have the latest version which will fail to link due to breaking ABI changes.
2. To update speech-dispatcher crate, we need to update tts crate version.
3. latest version of speech-dispatcher crate has some issues with bindgen version 0.60, so we need to manually bump that to 0.61 (latest).
4. bindgen latest version requires minimum version of rust to be 1.64 as it uses the std::ffi::* types .

Finally,

• speech-dispatcher in ubuntu-latest (20.04 LTS) is version 0.9. our changes won't compile because its too old and that library had breaking changes since then.
• speech-dispatcher in ubuntu-22.04 (will be default for ubuntu-latest by this month end) is version 0.11 and will compile successfully.

if we want to stick with ubuntu-latest, then this PR will have to wait for December i guess.

https://github.blog/changelog/2022-11-09-github-actions-ubuntu-latest-workflows-will-use-ubuntu-22-04/

Ubuntu-22.04 is ready to be the default version for the ubuntu-latest label in GitHub Actions workflows. This change will be rolled out over a period of 8 weeks beginning on October 1, 2022.

Closes #1125

clippy got a few new lints. for now, i added them to allow section of cranky.toml so that i can get this to compile for now.
I could fix those lints, but i am afraid it will touch a lot of files. If its okay to fix those lints, i can create a follow up PR to this.

I wanted to keep the noise low for this PR, so kept the changes as minimal as i could

[emilk]

This is great!

[coderedart]

ooh.. i can just press the commit suggestion buttom and it will add your changes without me doing anything. never knew i could do that. nice.

what about the clippy lints though?

[emilk]

Let's do the clippy lints in a separate PR - I think that was a good choice