Bump dtolnay/rust-toolchain in the minor-updates group

Bumps the minor-updates group with 1 update: [dtolnay/rust-toolchain](https://github.com/dtolnay/rust-toolchain).


Updates `dtolnay/rust-toolchain` from 1.88 to 1.100
- [Release notes](https://github.com/dtolnay/rust-toolchain/releases)
- [Commits](https://github.com/dtolnay/rust-toolchain/compare/1.88...1.100)

---
updated-dependencies:
- dependency-name: dtolnay/rust-toolchain
  dependency-version: '1.100'
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minor-updates
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
       - name: Install stable toolchain
         uses: dtolnay/rust-toolchain@stable
@@ -36,7 +36,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
       - name: Install stable toolchain with clippy and rustfmt
         uses: dtolnay/rust-toolchain@stable
@@ -57,7 +57,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
         with:
           # Full history is required for cog check to validate all commits.
           fetch-depth: 0
@@ -77,7 +77,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
       - name: Check licenses, advisories, and bans
         uses: EmbarkStudios/cargo-deny-action@v2
@@ -87,10 +87,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
       - name: Install Rust 1.88
-        uses: dtolnay/rust-toolchain@1.88
+        uses: dtolnay/rust-toolchain@1.100
 
       - name: Cache dependencies
         uses: Swatinem/rust-cache@v2

.github/workflows/release.yml

@@ -28,7 +28,7 @@ jobs:
       contents: write
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -106,7 +106,7 @@ jobs:
             artifact_dir: target/release
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
       - name: Install stable toolchain
         uses: dtolnay/rust-toolchain@stable