【轻量级 PR】：update build/build.sh. · Pull Request !1115 · openEuler/gala-gopher

在某些操作系统发行版，系统自带的clang版本低，需升级clang，问题如下：
```bash
[root@localhost build]# sh build.sh --release
clang -g -O2 -Wall -fPIC -std=gnu11 -Wunused -D__TARGET_ARCH_x86 -D__BTF_ENABLE_OFF -DBPF_NO_GLOBAL_DATA -DLIBBPF_VER_MAJOR=0 -DLIBBPF_VER_MINOR=0 -DCLANG_VER_MAJOR=3 -DENABLE_BASEINFO -DENABLE_VIRT -DENABLE_FLAMEGRAPH -DENABLE_L7 -DENABLE_TCP -DENABLE_SOCKET -DENABLE_IO -DENABLE_PROC -DENABLE_JVM -DENABLE_POSTGRE_SLI -DENABLE_OPENGAUSS_SLI -DENABLE_NGINX -DENABLE_LVS -DENABLE_KAFKA -DENABLE_TPROFILING -DENABLE_HW -DENABLE_KSLI -DENABLE_CONTAINER -DENABLE_SERMANT -DENABLE_SLI -DENABLE_FLOWTRACER -DENABLE_REPORT_EVENT -DKAFKA_CHANNEL -DFLAMEGRAPH_SVG -DL4_TOA -target bpf -I/usr/include -I/root/gala-gopher/src/lib//../common -I/root/gala-gopher/src/lib//lib -I/root/gala-gopher/src/lib//../probes/extends/ebpf.probe/src/include -I/root/gala-gopher/src/lib//.output -I/usr/include/libelf -c snooper.bpf.c -o snooper.bpf.o
error: unknown target triple 'bpf', please use -triple or -arch
make: *** [snooper.bpf.o] Error 1
prepare probes after tailor:  /root/gala-gopher/src/probes/system_infos.probe /root/gala-gopher/src/probes/virtualized_infos.probe
PROBES_C_LIST:
/root/gala-gopher/src/probes/system_infos.probe/system_infos_daemon.c;/root/gala-gopher/src/probes/system_infos.probe/system_cons.c;/root/gala-gopher/src/probes/system_infos.probe/system_cpu.c;/root/gala-gopher/src/probes/system_infos.probe/system_disk.c;/root/gala-gopher/src/probes/system_infos.probe/system_meminfo.c;/root/gala-gopher/src/probes/system_infos.probe/system_net.c;/root/gala-gopher/src/probes/system_infos.probe/system_os.c;/root/gala-gopher/src/probes/system_infos.probe/system_procs.c;/root/gala-gopher/src/probes/virtualized_infos.probe/virtualized_infos_daemon.c;/root/gala-gopher/src/probes/virtualized_infos.probe/virt_proc.c
PROBES_META_LIST:
/root/gala-gopher/src/probes/system_infos.probe/system_infos.meta /root/gala-gopher/src/probes/virtualized_infos.probe/virtualized_infos.meta
LIBBPF_VER:
0.0.4
/root/gala-gopher/src/lib/probe
cc -g -O2 -Wall -fPIC -std=gnu11 -Wunused -D__TARGET_ARCH_x86 -D__BTF_ENABLE_OFF -DBPF_NO_GLOBAL_DATA -DLIBBPF_VER_MAJOR=0 -DLIBBPF_VER_MINOR=0 -DCLANG_VER_MAJOR=3 -DENABLE_BASEINFO -DENABLE_VIRT -DENABLE_FLAMEGRAPH -DENABLE_L7 -DENABLE_TCP -DENABLE_SOCKET -DENABLE_IO -DENABLE_PROC -DENABLE_JVM -DENABLE_POSTGRE_SLI -DENABLE_OPENGAUSS_SLI -DENABLE_NGINX -DENABLE_LVS -DENABLE_KAFKA -DENABLE_TPROFILING -DENABLE_HW -DENABLE_KSLI -DENABLE_CONTAINER -DENABLE_SERMANT -DENABLE_SLI -DENABLE_FLOWTRACER -DENABLE_REPORT_EVENT -DKAFKA_CHANNEL -DFLAMEGRAPH_SVG -DL4_TOA -Wno-format-truncation -I/usr/include -I/root/gala-gopher/src/lib//../common -I/root/gala-gopher/src/lib//lib -I/root/gala-gopher/src/lib//../probes/extends/ebpf.probe/src/include -I/root/gala-gopher/src/lib//.output -I/usr/include/libelf jvm_attach.c  -o jvm_attach
make: cc: Command not found
make: *** [jvm_attach] Error 127
gcc -g -O2 -Wall -fPIC -shared -Wl,-z,relro,-z,now -std=gnu11 -Wno-format-truncation -Wunused -D__TARGET_ARCH_x86 -DBPF_NO_GLOBAL_DATA -DLIBBPF_VER_MAJOR=0 -DLIBBPF_VER_MINOR=0 -DENABLE_REPORT_EVENT -DKAFKA_CHANNEL -DFLAMEGRAPH_SVG -DL4_TOA   -c -o logs.o logs.c
make: gcc: Command not found
make: *** [logs.o] Error 127
[root@localhost build]# rpm -qa | grep clang
clang-3.4.2-9.uelc20.01.x86_64
```

这时不会自动安装gcc-c++，现补充上相关依赖

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