chore: iOS SDK using cocoapods.

example/ios/Podfile.lock

@@ -67,7 +67,6 @@ PODS:
     - DoubleConversion
     - glog
   - glog (0.3.5)
-  - libWeChatSDK (1.7.5)
   - OpenSSL-Universal (1.0.2.19):
     - OpenSSL-Universal/Static (= 1.0.2.19)
   - OpenSSL-Universal/Static (1.0.2.19)
@@ -298,8 +297,9 @@ PODS:
     - React-cxxreact (= 0.63.2)
     - React-jsi (= 0.63.2)
   - RNWechat (1.0.0):
-    - libWeChatSDK
     - React
+    - WechatOpenSDK (= 1.8.7.1)
+  - WechatOpenSDK (1.8.7.1)
   - Yoga (1.14.0)
   - YogaKit (1.18.1):
     - Yoga (~> 1.14)
@@ -366,8 +366,8 @@ SPEC REPOS:
     - Flipper-PeerTalk
     - Flipper-RSocket
     - FlipperKit
-    - libWeChatSDK
     - OpenSSL-Universal
+    - WechatOpenSDK
     - YogaKit
 
 EXTERNAL SOURCES:
@@ -442,7 +442,6 @@ SPEC CHECKSUMS:
   FlipperKit: bc68102cd4952a258a23c9c1b316c7bec1fecf83
   Folly: b73c3869541e86821df3c387eb0af5f65addfab4
   glog: 40a13f7840415b9a77023fbcae0f1e6f43192af3
-  libWeChatSDK: e34a813bccc704856a33943bde8279be4e4c82a0
   OpenSSL-Universal: 8b48cc0d10c1b2923617dfe5c178aa9ed2689355
   RCTRequired: f13f25e7b12f925f1f6a6a8c69d929a03c0129fe
   RCTTypeSafety: 44982c5c8e43ff4141eb519a8ddc88059acd1f3a
@@ -464,7 +463,8 @@ SPEC CHECKSUMS:
   React-RCTText: 1b6773e776e4b33f90468c20fe3b16ca3e224bb8
   React-RCTVibration: 4d2e726957f4087449739b595f107c0d4b6c2d2d
   ReactCommon: a0a1edbebcac5e91338371b72ffc66aa822792ce
-  RNWechat: 13905ec89041c708f753131d23edb6543de8d5ed
+  RNWechat: aed62070c33e207d8dbd8476b0be608d44cb7291
+  WechatOpenSDK: 6a4d1436c15b3b5fe2a0bd383f3046010186da44
   Yoga: 7740b94929bbacbddda59bf115b5317e9a161598
   YogaKit: f782866e155069a2cca2517aafea43200b01fd5a