Pin dependencies

Author: oxide-renovate[bot]

.github/workflows/ci.yml

@@ -21,10 +21,10 @@ jobs:
           # We need to fetch the entire history so clippy can run the
           # e2e-example/client build script.
           fetch-depth: 0
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
         with:
           components: rustfmt, clippy
-      - uses: taiki-e/install-action@just
+      - uses: taiki-e/install-action@4457680a12fd1b15fae149de65b06751fc727a1d # just
       - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
         with:
           key: partition-${{ matrix.partition }}
@@ -54,14 +54,14 @@ jobs:
           # We need to fetch the entire history so the tests can run merge-base
           # operations.
           fetch-depth: 0
-      - uses: dtolnay/rust-toolchain@master
+      - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9 # master
         with:
           toolchain: ${{ matrix.rust-version }}
       - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
         with:
           key: partition-${{ matrix.partition }}
-      - uses: taiki-e/install-action@nextest
-      - uses: taiki-e/install-action@v2
+      - uses: taiki-e/install-action@b18fb392e1a1b90971f7c7572c92790fa54f23d5 # nextest
+      - uses: taiki-e/install-action@213ccc1a076163c093f914550b94feb90fab916d # v2
         with:
           tool: jj-cli
       - name: Build

.github/workflows/release.yml

@@ -21,7 +21,7 @@ jobs:
       - uses: rust-lang/crates-io-auth-action@v1
         id: auth
       - name: Install Rust
-        uses: dtolnay/rust-toolchain@stable
+        uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
       - name: Install cargo release
         uses: taiki-e/install-action@3235f8901fd37ffed0052b276cec25a362fb82e9 # v2
         with: