fix: remove build-essential to prevent llvm package purge (CircleCI-Public#131)

Removes unnecessary build-essential package from BUILD_DEPS which was causing
libllvm14 to be incorrectly purged during cleanup, breaking PostgreSQL's JIT
compilation.

Author: wilbrdt

Dockerfile.template

@@ -21,10 +21,9 @@ ENV PARTMAN_VERSION=4.7.2
 
 USER root
 RUN BUILD_DEPS="bison \
-        build-essential \
-        clang \
+		clang \
 		dirmngr \
-        flex \
+		flex \
 		gnupg \
 		libclang-dev \
 		libicu-dev \
@@ -57,7 +56,7 @@ RUN BUILD_DEPS="bison \
 	./configure \
 		--prefix=/usr/lib/postgresql/$PG_MAJOR \
 		--enable-integer-datetimes \
-        --enable-thread-safety \
+		--enable-thread-safety \
 		--enable-tap-tests \
 		--with-uuid=e2fs \
 		--with-gnu-ld \