feat: prepare to release APISIX-BASE 1.21.4.1.6 (api7#281)

* feat: prepare to release APISIX-BASE 1.21.4.1.6

---------

Co-authored-by: soulbird <zhaothree@gmail.com>

Author: soulbird

.github/workflows/package-apisix-base-deb-ubuntu20.04.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     env:
-      BUILD_APISIX_BASE_VERSION: 1.21.4.1.5
+      BUILD_APISIX_BASE_VERSION: 1.21.4.1.6
     steps:
       - uses: actions/checkout@v2
 

.github/workflows/package-apisix-base-rpm-el7.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     env:
-      BUILD_APISIX_BASE_VERSION: 1.21.4.1.5
+      BUILD_APISIX_BASE_VERSION: 1.21.4.1.6
     steps:
       - uses: actions/checkout@v2
 

.github/workflows/package-apisix-base-rpm-el8.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     env:
-      BUILD_APISIX_BASE_VERSION: 1.21.4.1.5
+      BUILD_APISIX_BASE_VERSION: 1.21.4.1.6
     steps:
       - uses: actions/checkout@v2
 

build-apisix-base.sh

@@ -20,7 +20,7 @@ else
     apisix_nginx_module_ver="1.12.0"
     wasm_nginx_module_ver="0.6.4"
     lua_var_nginx_module_ver="v0.5.3"
-    grpc_client_nginx_module_ver="v0.4.0"
+    grpc_client_nginx_module_ver="v0.4.1"
     amesh_ver="main"
     debug_args=${debug_args:-}
     OR_PREFIX=${OR_PREFIX:="/usr/local/openresty"}