ci: use latest version of build tools (#6765)

Author: leslie-tsang

.github/workflows/centos7-ci.yml

@@ -47,7 +47,7 @@ jobs:
       run: |
         export VERSION=${{ steps.branch_env.outputs.version }}
         sudo gem install --no-document fpm
-        git clone -b v2.2.1 https://github.com/api7/apisix-build-tools.git
+        git clone --depth 1 https://github.com/api7/apisix-build-tools.git
 
         # move codes under build tool
         mkdir ./apisix-build-tools/apisix

ci/centos7-ci.sh

@@ -27,7 +27,7 @@ install_dependencies() {
 
     # install openresty to make apisix's rpm test work
     yum install -y yum-utils && yum-config-manager --add-repo https://openresty.org/package/centos/openresty.repo
-    yum install -y openresty openresty-debug openresty-openssl111-debug-devel pcre pcre-devel
+    yum install -y openresty openresty-debug openresty-openssl111-debug-devel pcre pcre-devel openldap-devel
 
     # install luarocks
     ./utils/linux-install-luarocks.sh