tools: bump rustc version

Author: marco-ippolito

.github/workflows/test-linux.yml

@@ -38,7 +38,7 @@ env:
   CXX: ${{ (github.base_ref == 'main' || github.ref_name == 'main') && 'sccache' || '' }} clang++-19
   SCCACHE_GHA_ENABLED: ${{ github.base_ref == 'main' || github.ref_name == 'main' }}
   SCCACHE_IDLE_TIMEOUT: '0'
-  RUSTC_VERSION: '1.82'
+  RUSTC_VERSION: '1.85'
 
 permissions:
   contents: read

.github/workflows/test-macos.yml

@@ -66,7 +66,7 @@ env:
   PYTHON_VERSION: '3.14'
   XCODE_VERSION: '16.4'
   FLAKY_TESTS: keep_retrying
-  RUSTC_VERSION: '1.82'
+  RUSTC_VERSION: '1.85'
 
 permissions:
   contents: read