Bump actions-rs/toolchain from 1 to 1.0.7

Bumps [actions-rs/toolchain](https://github.com/actions-rs/toolchain) from 1 to 1.0.7.
- [Release notes](https://github.com/actions-rs/toolchain/releases)
- [Changelog](https://github.com/actions-rs/toolchain/blob/master/CHANGELOG.md)
- [Commits](actions-rs/toolchain@v1...v1.0.7)

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -39,7 +39,7 @@ jobs:
         if: matrix.os == 'windows-latest'
 
       - name: Install stable toolchain
-        uses: actions-rs/toolchain@v1
+        uses: actions-rs/toolchain@v1.0.7
         with:
           toolchain: stable
           override: true
@@ -61,7 +61,7 @@ jobs:
         run: sudo apt install -y libusb-1.0-0-dev libftdi1-dev
 
       - name: Install stable toolchain
-        uses: actions-rs/toolchain@v1
+        uses: actions-rs/toolchain@v1.0.7
         with:
           profile: minimal
           toolchain: stable
@@ -80,7 +80,7 @@ jobs:
         uses: actions/checkout@v2.3.4
 
       - name: Install stable toolchain
-        uses: actions-rs/toolchain@v1
+        uses: actions-rs/toolchain@v1.0.7
         with:
           toolchain: stable
           override: true
@@ -105,7 +105,7 @@ jobs:
         run: sudo apt install -y libusb-1.0-0-dev libftdi1-dev
 
       - name: Install stable toolchain
-        uses: actions-rs/toolchain@v1
+        uses: actions-rs/toolchain@v1.0.7
         with:
           toolchain: stable
           override: true