22: install ca-certificates before llvm certificate

Author: janisozaur

22/jammy/Dockerfile

@@ -1,8 +1,6 @@
 # Default image that can build OpenRCT2 for Linux (amd64).
 # Provides building with cmake+ninja using either gcc or clang.
 FROM ubuntu:22.04
-COPY llvm-snapshot.gpg.key /etc/apt/trusted.gpg.d/apt.llvm.org.asc
-COPY llvm.list /etc/apt/sources.list.d
 RUN apt-get update && \
     apt-get -y upgrade && \
     DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y \
@@ -19,7 +17,15 @@ RUN apt-get update && \
     nlohmann-json3-dev \
   # Testing libraries
     libgtest-dev \
-    clang-20 software-properties-common gpg-agent
+    software-properties-common gpg-agent
+
+# Need to install ca-certificates before importing key
+COPY llvm-snapshot.gpg.key /etc/apt/trusted.gpg.d/apt.llvm.org.asc
+COPY llvm.list /etc/apt/sources.list.d
+RUN apt-get update && \
+    apt-get -y upgrade && \
+    DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y \
+    clang-20
 RUN add-apt-repository -y ppa:ecal/cmake-3.25 && apt install -y cmake
 
 # Bash is required for OpenRCT2 CI