Restore CI + improvement (#249)

### Checklist

* [X] I have read the [Contributor Guide](../CONTRIBUTING.md)
* [X] I have read and agree to the [Code of
Conduct](../CODE_OF_CONDUCT.md)
* [X] I have added a description of my changes and why I'd like them
included in the section below

### Description of Changes

- Move `CI` to GitHub Runners, as custom Runners does not seem
available.
- Migrate to `actions/checkout@v4`
- use `--locked` on cargo commands to help reduce CI duration
- enable use of `rust-cache` action (Swatinem/rust-cache@v2) to help
reduce build time.

:exclamation: `main` seems to be _broken_

---------

Co-authored-by: Emil Ernerfeldt <[email protected]>

Author: gwen-lg

.github/workflows/ci.yml

@@ -20,13 +20,16 @@ env:
 jobs:
   lint:
     name: Lint
-    runs-on: ubuntu-20.04-16core
+    runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: clippy, rustfmt
           targets: wasm32-unknown-unknown
+      - uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: "true"
 
       - name: Install packages (Linux)
         if: runner.os == 'Linux'
@@ -41,21 +44,25 @@ jobs:
 
       - run: cargo fetch
       - name: cargo clippy
-        run: cargo clippy --all-targets -- -D warnings
+        run: cargo clippy --locked --all-targets -- -D warnings
       - name: cargo clippy wasm32-unknown-unknown WITHOUT web feature
-        run: cargo clippy -p puffin --target wasm32-unknown-unknown --no-default-features -- -D warnings
+        run: cargo clippy --locked -p puffin --target wasm32-unknown-unknown --no-default-features -- -D warnings
       - name: cargo clippy wasm32
-        run: cargo clippy -p puffin_viewer --target wasm32-unknown-unknown --all-features --lib
+        run: cargo clippy --locked -p puffin_viewer --target wasm32-unknown-unknown --all-features --lib
 
   test:
     name: Test
     strategy:
+      fail-fast: true
       matrix:
-        os: [ubuntu-20.04-16core, windows-2022-16core, macOS-latest-xl]
+        os: [ubuntu-latest, windows-2022, macos-latest]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: "true"
 
       - run: cargo fetch
       - name: Install packages (Linux)
@@ -65,23 +72,23 @@ jobs:
           sudo apt-get -yq --no-install-suggests --no-install-recommends install libxcb-render0-dev libxcb-shape0-dev libxcb-xfixes0-dev libasound2-dev libxkbcommon-dev # egui_glium dependencies
           sudo apt-get install libgtk-3-dev # rfd dependencies
       - name: cargo test build default features
-        run: cargo build --tests --release
+        run: cargo build --locked --tests --release
       - name: cargo test build
-        run: cargo build --tests --release --all-features
+        run: cargo build --locked --tests --release --all-features
       - name: cargo test
-        run: cargo test -p puffin -p puffin_egui -p puffin_http --release --all-features
+        run: cargo test --locked -p puffin -p puffin_egui -p puffin_http --release --all-features
       - name: cargo test --doc
-        run: cargo test --workspace --doc
+        run: cargo test --locked --workspace --doc
       - name: cargo doc
-        run: cargo doc -p puffin -p puffin_egui -p puffin_http -p --lib --no-deps --all-features
+        run: cargo doc --locked -p puffin -p puffin_egui -p puffin_http -p --lib --no-deps --all-features
 
   cargo-vet:
     name: Vet Dependencies
-    runs-on: ubuntu-20.04-16core
+    runs-on: ubuntu-latest
     env:
       CARGO_VET_VERSION: 0.9.1
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
       - uses: actions/cache@v3
         with: