add proper CI

.github/FUNDING.yml

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+# These are supported funding model platforms
+
+github: [robjtede]

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: daily
+  - package-ecosystem: cargo
+    directory: /
+    schedule:
+      interval: daily

.github/workflows/ci.yml

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+name: CI
+
+on:
+  pull_request:
+    branches: [main]
+  push:
+    branches: [main]
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        toolchain:
+          - '1.66' # MSRV
+          - stable
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install Rust
+        uses: actions-rust-lang/setup-rust-toolchain@v1.5.0
+        with:
+          components: clippy
+
+      - name: Test
+        run: cargo test --all-features

.github/workflows/coverage.yml

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+name: Coverage
+
+on:
+  push:
+    branches: [main]
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  coverage:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install Rust
+        uses: actions-rust-lang/setup-rust-toolchain@v1.5.0
+        with:
+          components: llvm-tools-preview
+
+      - name: Install cargo-llvm-cov
+        uses: taiki-e/install-action@v2.17.0
+        with:
+          tool: cargo-llvm-cov
+
+      - name: Generate code coverage
+        run: cargo llvm-cov --workspace --all-features --codecov --output-path codecov.json
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3.1.4
+        with:
+          files: codecov.json
+          fail_ci_if_error: true

.github/workflows/lint.yml

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+name: Lint
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+  push:
+    branches: [main]
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  fmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Rust
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          components: rustfmt
+
+      - name: Format Check
+        uses: actions-rust-lang/rustfmt@v1
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    permissions:
+      checks: write
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Rust
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          components: clippy
+
+      - name: Clippy Check
+        uses: giraffate/clippy-action@v1
+        with:
+          reporter: github-pr-check
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          clippy_flags: --workspace --all-targets --all-features