Update nightly in CI

Author: robinhundt

.github/workflows/pull_request.yml

@@ -23,7 +23,7 @@ jobs:
         uses: dtolnay/rust-toolchain@master
         id: toolchain
         with:
-          toolchain: nightly-2025-09-16
+          toolchain: nightly-2025-11-21
           components: "rustfmt, miri"
       - name: Override default toolchain
         run: rustup override set ${{steps.toolchain.outputs.name}}
@@ -52,7 +52,7 @@ jobs:
         uses: dtolnay/rust-toolchain@master
         id: toolchain
         with:
-          toolchain: nightly-2025-09-16
+          toolchain: nightly-2025-11-21
           components: "clippy, rustfmt"
       - name: Override default toolchain
         run: rustup override set ${{steps.toolchain.outputs.name}}
@@ -80,7 +80,7 @@ jobs:
         uses: dtolnay/rust-toolchain@master
         id: toolchain
         with:
-          toolchain: nightly-2025-09-16
+          toolchain: nightly-2025-11-21
           components: rust-docs
       - name: Override default toolchain
         run: rustup override set ${{steps.toolchain.outputs.name}}

.github/workflows/push.yml

@@ -17,7 +17,7 @@ jobs:
         uses: dtolnay/rust-toolchain@master
         id: toolchain
         with:
-          toolchain: nightly-2025-09-16
+          toolchain: nightly-2025-11-21
       - name: Override default toolchain
         run: rustup override set ${{steps.toolchain.outputs.name}}
       - run: cargo --version

.github/workflows/rustdoc.yml

@@ -21,7 +21,7 @@ jobs:
         uses: dtolnay/rust-toolchain@master
         id: toolchain
         with:
-          toolchain: nightly-2025-09-16
+          toolchain: nightly-2025-11-21
           components: rust-docs
       - name: Override default toolchain
         run: rustup override set ${{steps.toolchain.outputs.name}}