Refactor Dockerfiles for Gitea runners: update package installations, remove obsolete files, and enhance build configurations

ansible/files/dockerfiles/linux-runners/Dockerfile.cpp-build

@@ -2,9 +2,8 @@ FROM local/gitea-runner-base:latest
 
 # cpp-build runner profile: dedicated C/C++ build environment.
 USER root
-RUN apk add --no-cache \
-	bash \
-	build-base \
+RUN apt-get update && apt-get install -y --no-install-recommends \
+	build-essential \
 	ca-certificates \
 	cmake \
 	curl \
@@ -13,8 +12,8 @@ RUN apk add --no-cache \
 	make \
 	openssh-client \
 	python3 \
-	py3-pip \
+	python3-pip \
 	rsync \
 	unzip \
-	yq \
-	zip
+	zip \
+	&& rm -rf /var/lib/apt/lists/*