ci: do not run dist-upgrade

Author: kaimast

.circleci/config.yml

@@ -77,7 +77,6 @@ commands:
             export RUSTC_WRAPPER="sccache"
             rm -rf "$CIRCLE_WORKING_DIRECTORY/.cargo/registry"
             DEBIAN_FRONTEND=noninteractive sudo apt-get update
-            DEBIAN_FRONTEND=noninteractive sudo apt-get dist-upgrade -y -o DPkg::Options::=--force-confold
             DEBIAN_FRONTEND=noninteractive sudo apt-get install -y --no-install-recommends clang llvm-dev llvm pkg-config xz-utils make libssl-dev libssl-dev
       - restore_cache:
           keys: