Updating CI

This is mostly just removing deprecation warnings for old checkout
actions. However, I noticed that doctests failed but CI didn't notice,
and I realized `--all-targets` didn't include doctests. By removing it,
doctests are run.

.github/workflows/audit.yml

@@ -10,7 +10,7 @@ jobs:
       - name: Install Rust
         uses: hecrj/setup-rust-action@v1
       - name: Cache
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cargo/.crates.toml
@@ -22,7 +22,7 @@ jobs:
         run: cargo -v install cargo-deny
 
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Audit
         run: |

.github/workflows/benches.yml

@@ -7,8 +7,8 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/checkout@v2
-      
+      - uses: actions/checkout@v3
+
       - name: Install Rust
         uses: hecrj/setup-rust-action@v1
 
@@ -19,7 +19,7 @@ jobs:
       - name: Run benchmarks
         run: |
           cargo bench
-      
+
       - name: Make plots have a solid white background
         run: |
           find target/criterion -name "*.svg" -exec sed -i 's/<svg/<svg style="background-color:#EEE;"/g' {} \;

.github/workflows/coverage.yml

@@ -7,8 +7,8 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v2
-      
+      - uses: actions/checkout@v3
+
       - name: Install Rust
         uses: hecrj/setup-rust-action@v1
 

.github/workflows/docs.yml

@@ -10,7 +10,7 @@ jobs:
       - name: Install Rust
         uses: hecrj/setup-rust-action@v1
 
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Generate Docs
         run: |
           cargo doc --no-deps --all-features

.github/workflows/rust.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Install Rust
         uses: hecrj/setup-rust-action@v1
@@ -18,4 +18,4 @@ jobs:
 
       - name: Run unit tests
         run: |
-          cargo test --all-features --all-targets
+          cargo test --all-features