Setup github token env.

Author: grl-wang

buildspec/linuxTests.yml

@@ -13,6 +13,7 @@ env:
         # followed by Error: Could not delete obsolete instance handle Error: ENOENT: no such file or directory, unlink <path>
         AWS_TOOLKIT_TEST_CACHE_DIR: '/tmp/.vscode-test/'
         AWS_TOOLKIT_TEST_USER_DIR: '/tmp/.vscode-test/user-data/'
+        GITHUB_TOKEN: ${GITHUB_READONLY_TOKEN}
 
 phases:
     install:
@@ -25,8 +26,6 @@ phases:
     pre_build:
         commands:
             - export HOME=/home/codebuild-user
-            # produce an API key, set the GITHUB_TOKEN environment var, and vscode-ripgrep will pick it up
-            - export GITHUB_TOKEN=${GITHUB_READONLY_TOKEN}
             - bash buildspec/shared/linux-pre_build.sh
 
     build:

buildspec/packageTestVsix.yml

@@ -8,6 +8,7 @@ env:
         AWS_TOOLKIT_TEST_USER_DIR: '/tmp/'
         # needed or else webpack will cause it to run out of memory
         NODE_OPTIONS: '--max-old-space-size=8192'
+        GITHUB_TOKEN: ${GITHUB_READONLY_TOKEN}
 
 phases:
     install:
@@ -20,7 +21,6 @@ phases:
     pre_build:
         commands:
             - export HOME=/home/codebuild-user
-            - export GITHUB_TOKEN=${GITHUB_READONLY_TOKEN}
             - bash buildspec/shared/linux-pre_build.sh
 
     build: