Use github actions for OSX (aws#70)

* Use github actions for OSX

* Update deps to get mac fixes

Author: Justin Boswell

.github/workflows/mac-osx-ci.yml

@@ -0,0 +1,23 @@
+name: CI
+
+on: [push]
+
+jobs:
+  OSX:
+
+    runs-on: macOS-10.14
+
+    steps:
+    - name: Checkout Source
+      uses: actions/checkout@v1
+    
+    - name: Install Dependencies
+      run: |
+        brew install llvm
+    
+    - name: Build and test
+      run: |
+        export PATH=$(brew --prefix llvm)/bin:$PATH
+        export CC=clang
+        export CXX=clang++
+        ./codebuild/common-posix.sh

aws-common-runtime/CMakeLists.txt

@@ -17,7 +17,7 @@ set(AWS_DEPS_DOWNLOAD_DIR "${AWS_DEPS_BUILD_DIR}/downloads" CACHE PATH "Dependen
 
 message("install dir ${AWS_DEPS_INSTALL_DIR}")
 set(AWS_C_COMMON_URL "https://github.com/awslabs/aws-c-common.git")
-set(AWS_C_COMMON_SHA "v0.4.17")
+set(AWS_C_COMMON_SHA "v0.4.21")
 include(BuildAwsCCommon)
 
 if (UNIX AND NOT APPLE)
@@ -27,7 +27,7 @@ if (UNIX AND NOT APPLE)
 endif()
 
 set(AWS_C_IO_URL "https://github.com/awslabs/aws-c-io.git")
-set(AWS_C_IO_SHA "v0.4.13")
+set(AWS_C_IO_SHA "v0.4.16")
 include(BuildAwsCIO)
 
 set(AWS_C_COMPRESSION_URL "https://github.com/awslabs/aws-c-compression.git")
@@ -43,7 +43,7 @@ set(AWS_C_MQTT_SHA "v0.4.16")
 include(BuildAwsCMqtt)
 
 set(AWS_C_CAL_URL "https://github.com/awslabs/aws-c-cal.git")
-set(AWS_C_CAL_SHA "v0.1.9")
+set(AWS_C_CAL_SHA "v0.2.0")
 include(BuildAwsCCal)
 
 set(AWS_C_AUTH_URL "https://github.com/awslabs/aws-c-auth.git")