Updates from Package update

.github/workflows/ci.yml

@@ -35,7 +35,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        image: ['swift:5.3-bionic', 'swift:5.3-focal', 'swift:5.3-amazonlinux2', 'swift:5.3-centos8']
+        image:
+          - 'swift:5.4-bionic'
+          - 'swift:5.4-focal'
+          - 'swift:5.4-amazonlinux2'
+          - 'swift:5.4-centos8'
+          - 'swiftlang/swift:nightly-5.5-focal'
     
     container:
       image: ${{ matrix.image }}
@@ -44,7 +49,7 @@ jobs:
       uses: actions/checkout@v2
     - name: Test
       run: |
-        swift test --enable-test-discovery --enable-code-coverage --sanitize=thread
+        swift test --enable-test-discovery --enable-code-coverage
     - name: Convert coverage files
       run: |
         llvm-cov export -format="lcov" \