ci: Bump and pin dtolnay/rust-toolchain

Author: Techassi

.github/workflows/pr_security-checks.yml

@@ -26,7 +26,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           persist-credentials: false
-      - uses: dtolnay/rust-toolchain@master
+      - uses: dtolnay/rust-toolchain@efa25f7f19611383d5b0ccf2d1c8914531636bf9
         with:
           toolchain: ${{ env.RUST_TOOLCHAIN_VERSION }}
       - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
@@ -51,7 +51,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           persist-credentials: false
-      - uses: dtolnay/rust-toolchain@master
+      - uses: dtolnay/rust-toolchain@efa25f7f19611383d5b0ccf2d1c8914531636bf9
         with:
           toolchain: ${{ env.RUST_TOOLCHAIN_VERSION }}
       - uses: EmbarkStudios/cargo-deny-action@76cd80eb775d7bbbd2d80292136d74d39e1b4918 # v2.0.14

.github/workflows/publish-docs.yml

@@ -26,7 +26,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: dtolnay/rust-toolchain@master
+      - uses: dtolnay/rust-toolchain@efa25f7f19611383d5b0ccf2d1c8914531636bf9
         with:
           toolchain: ${{ env.RUST_TOOLCHAIN_VERSION }}