Cherry-pick version bump commit with conflicts

.github/workflows/ci.generate.ts

@@ -5,7 +5,11 @@ import { stringify } from "jsr:@std/yaml@^0.221/stringify";
 // Bump this number when you want to purge the cache.
 // Note: the tools/release/01_bump_crate_versions.ts script will update this version
 // automatically via regex, so ensure that this line maintains this format.
+<<<<<<< HEAD
 const cacheVersion = 38;
+=======
+const cacheVersion = 39;
+>>>>>>> 46e2f9a47 (2.1.9 (#27886))
 
 const ubuntuX86Runner = "ubuntu-24.04";
 const ubuntuX86XlRunner = "ubuntu-24.04-xl";

.github/workflows/ci.yml

@@ -184,8 +184,13 @@ jobs:
             ~/.cargo/registry/index
             ~/.cargo/registry/cache
             ~/.cargo/git/db
+<<<<<<< HEAD
           key: '38-cargo-home-${{ matrix.os }}-${{ matrix.arch }}-${{ hashFiles(''Cargo.lock'') }}'
           restore-keys: '38-cargo-home-${{ matrix.os }}-${{ matrix.arch }}-'
+=======
+          key: '39-cargo-home-${{ matrix.os }}-${{ matrix.arch }}-${{ hashFiles(''Cargo.lock'') }}'
+          restore-keys: '39-cargo-home-${{ matrix.os }}-${{ matrix.arch }}-'
+>>>>>>> 46e2f9a47 (2.1.9 (#27886))
         if: '!(matrix.skip)'
       - uses: dsherret/rust-toolchain-file@v1
         if: '!(matrix.skip)'
@@ -377,7 +382,11 @@ jobs:
             !./target/*/*.zip
             !./target/*/*.tar.gz
           key: never_saved
+<<<<<<< HEAD
           restore-keys: '38-cargo-target-${{ matrix.os }}-${{ matrix.arch }}-${{ matrix.profile }}-${{ matrix.job }}-'
+=======
+          restore-keys: '39-cargo-target-${{ matrix.os }}-${{ matrix.arch }}-${{ matrix.profile }}-${{ matrix.job }}-'
+>>>>>>> 46e2f9a47 (2.1.9 (#27886))
       - name: Apply and update mtime cache
         if: '!(matrix.skip) && (!startsWith(github.ref, ''refs/tags/''))'
         uses: ./.github/mtime_cache
@@ -693,7 +702,11 @@ jobs:
             !./target/*/gn_root
             !./target/*/*.zip
             !./target/*/*.tar.gz
+<<<<<<< HEAD
           key: '38-cargo-target-${{ matrix.os }}-${{ matrix.arch }}-${{ matrix.profile }}-${{ matrix.job }}-${{ github.sha }}'
+=======
+          key: '39-cargo-target-${{ matrix.os }}-${{ matrix.arch }}-${{ matrix.profile }}-${{ matrix.job }}-${{ github.sha }}'
+>>>>>>> 46e2f9a47 (2.1.9 (#27886))
   wasm:
     name: build wasm32
     needs: