ci: don't use the unmaintained actions-rs actions

Signed-off-by: Richard Zak <richard.j.zak@gmail.com>

Author: rjzak

.github/dependabot.yml

@@ -4,3 +4,7 @@ updates:
   directory: "/"
   schedule:
     interval: "daily"
+- package-ecosystem: "github-actions"
+  directory: "/"
+  schedule:
+    interval: "daily"

.github/workflows/lint.yml

@@ -6,47 +6,33 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          components: rustfmt
-          toolchain: nightly
-          profile: minimal
-          override: true
-      - uses: actions-rs/cargo@v1
-        with:
-          command: fmt
-          args: --all -- --check
+      - name: Setup Rust toolchain
+        run: rustup show && rustup update
+      - name: cargo fmt
+        run: cargo fmt --all -- --check
 
   clippy:
     name: cargo clippy
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          components: clippy
-          toolchain: nightly
-          profile: minimal
-          override: true
-      - uses: actions-rs/cargo@v1
-        with:
-          command: clippy
-          args: --all-features -- -D warnings
+      - name: Setup Rust toolchain
+        run: rustup show && rustup update
+      - name: cargo clippy
+        run: cargo clippy --workspace --all-features --tests -- -D warnings
 
   readme:
     name: cargo readme
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: nightly
-          profile: minimal
-          override: true
+      - name: Setup Rust toolchain
+        run: rustup show && rustup update
       - run: cargo install cargo-readme
       - run: cargo readme > README.md && git diff --exit-code
 
   check-spdx-headers:
+    name: spdx check
     runs-on: ubuntu-latest
     steps:
       - name: checkout

.github/workflows/test.yml

@@ -6,14 +6,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: ${{ matrix.toolchain }}
-          override: true
-      - uses: actions-rs/cargo@v1
-        with:
-          command: test
-          args: ${{ matrix.profile.flag }} --features=${{ matrix.features }}
+      - name: Install Rust
+        run: rustup toolchain install ${{ matrix.toolchain }}
+      - name: cargo test
+        run: cargo +${{ matrix.toolchain }} test --features=${{ matrix.features }} ${{ matrix.profile.flag }}
     strategy:
       fail-fast: false
       matrix:
@@ -47,14 +43,10 @@ jobs:
     runs-on: [self-hosted, linux, sgx1]
     steps:
       - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-          toolchain: ${{ matrix.toolchain }}
-          override: true
-      - uses: actions-rs/cargo@v1
-        with:
-          command: test
-          args: ${{ matrix.profile.flag }} --all-features
+      - name: Install Rust
+        run: rustup toolchain install ${{ matrix.toolchain }}
+      - name: cargo test
+        run: cargo +${{ matrix.toolchain }} test  --all-features ${{ matrix.profile.flag }}
     strategy:
       fail-fast: false
       matrix: