bump rust version to v1.86

.github/workflows/core.yml

@@ -207,8 +207,8 @@ jobs:
 
             rustup set auto-self-update disable
 
-            rustup install 1.84
-            rustup default 1.84
+            rustup install 1.86
+            rustup default 1.86
 
             export CC=clang
             export CXX=clang++

.github/workflows/install_rust.sh

@@ -45,8 +45,8 @@ fi
 
 # see https://github.com/rust-lang/rustup/issues/3709
 rustup set auto-self-update disable
-rustup install 1.84
-rustup default 1.84
+rustup install 1.86
+rustup default 1.86
 
 # mips/mipsel cannot add target from rustup, need compile by ourselves
 if [[ $OS =~ ^ubuntu.*$ && $TARGET =~ ^mips.*$ ]]; then