change BUILD_COMMIT to v2.1.6alpha1 branch

Author: jswhit

.github/workflows/build-wheels.yml

@@ -38,7 +38,7 @@ jobs:
     env:
       REPO_DIR: netcdf4-python
       PKG_NAME: netcdf4-python
-      BUILD_COMMIT: src_reorg
+      BUILD_COMMIT: v2.1.6alpha1
       UNICODE_WIDTH: 32
       MB_PYTHON_VERSION: ${{ matrix.python-version }}
       TRAVIS_PYTHON_VERSION: ${{ matrix.python-version }}

.travis.yml

@@ -1,7 +1,7 @@
 env:
     global:
         - REPO_DIR=netcdf4-python
-        - BUILD_COMMIT=src_reorg
+        - BUILD_COMMIT=v2.1.6alpha1
         - PLAT=x86_64
         - UNICODE_WIDTH=32
         - NP_BUILD_DEP=1.17.3