Unset ANDROID_NDK_ROOT for recent Swift versions (finagolfin/swift-android-sdk#207)

Author: marcprux

.github/workflows/test-action.yml

@@ -11,7 +11,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ['ubuntu-24.04', 'ubuntu-22.04', 'macos-13', 'macos-15']
-        swift-version: ['6.0.3', '6.1-DEVELOPMENT-SNAPSHOT-2025-02-14-a', '6.1-DEVELOPMENT-SNAPSHOT-2025-03-07-a']
+        swift-version: ['6.0.3', '6.1-DEVELOPMENT-SNAPSHOT-2025-03-07-a']
     steps:
       - name: Checkout Action
         uses: actions/checkout@v4
@@ -70,7 +70,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ['ubuntu-24.04', 'ubuntu-22.04', 'macos-13', 'macos-15']
-        swift-version: ['6.0.3', '6.1-DEVELOPMENT-SNAPSHOT-2025-02-14-a', '6.1-DEVELOPMENT-SNAPSHOT-2025-03-07-a']
+        swift-version: ['6.0.3', '6.1-DEVELOPMENT-SNAPSHOT-2025-03-07-a']
     steps:
       - name: Checkout Action
         uses: actions/checkout@v4

action.yml

@@ -153,6 +153,12 @@ runs:
         echo "SWIFT_BRANCH: ${SWIFT_BRANCH}"
         echo "swift-branch=${SWIFT_BRANCH}" >> $GITHUB_OUTPUT
 
+        if [[ ${SWIFT_VERSION_ID} != swift-6.0* ]]; then
+          # recent releases require that ANDROID_NDK_ROOT *not* be set 
+          # see https://github.com/finagolfin/swift-android-sdk/issues/207
+          echo "ANDROID_NDK_ROOT=" >> $GITHUB_ENV
+        fi
+
     - name: Cache Swift ${{ steps.setup.outputs.swift-version }} Host Toolchain
       uses: actions/cache@v4
       id: cache-swift