chore: see if we can switch CI to ubuntu 24.04

Author: mhx

.docker/Dockerfile

@@ -1,19 +1,23 @@
 # syntax=docker/dockerfile:1
 ARG ARCH=amd64
-FROM $ARCH/ubuntu:23.10
-RUN apt update && apt install -y gnupg wget software-properties-common
-RUN wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | gpg --dearmor - | tee /etc/apt/trusted.gpg.d/kitware.gpg >/dev/null
-RUN apt-add-repository 'deb https://apt.kitware.com/ubuntu/ jammy main'
+FROM $ARCH/ubuntu:24.04
+RUN apt update
+RUN apt upgrade -y
+RUN apt install -y gnupg wget software-properties-common apt-utils
+RUN echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
 RUN apt install -y \
         gcc-11 \
         g++-11 \
         gcc-12 \
         g++-12 \
         gcc-13 \
         g++-13 \
+        gcc-14 \
+        g++-14 \
         clang-15 \
         clang-16 \
         clang-17 \
+        clang-18 \
         git \
         vim \
         zstd \

.docker/build-linux.sh

@@ -31,14 +31,14 @@ esac
 
 case "-$BUILD_TYPE-" in
   *-gcc-*)
-    export CC=gcc-13 CXX=g++-13
+    export CC=gcc-14 CXX=g++-14
     export COMPILER=gcc
     ;;
   *-oldgcc-*)
     export CC=gcc-11 CXX=g++-11
     ;;
   *-clang-*)
-    export CC=clang-17 CXX=clang++-17
+    export CC=clang-18 CXX=clang++-18
     export COMPILER=clang
     ;;
   *-oldclang-*)
@@ -114,9 +114,9 @@ if [[ "-$BUILD_TYPE-" == *-coverage-* ]]; then
   unset LLVM_PROFILE_FILE
   rm -rf /tmp-runner/coverage
   mkdir -p /tmp-runner/coverage
-  llvm-profdata-17 merge -sparse profile/* -o dwarfs.profdata
+  llvm-profdata-18 merge -sparse profile/* -o dwarfs.profdata
   for binary in mkdwarfs dwarfs dwarfsck dwarfsextract *_test ricepp/ricepp_test; do
-    llvm-cov-17 show -instr-profile=dwarfs.profdata $binary >/tmp-runner/coverage/$(basename $binary).txt
+    llvm-cov-18 show -instr-profile=dwarfs.profdata $binary >/tmp-runner/coverage/$(basename $binary).txt
   done
 fi