gh-97032: Set tkinter path for macOS CI (GH-97525)

Author: corona10

.github/workflows/build.yml

@@ -151,7 +151,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - name: Configure CPython
-      run: ./configure --with-pydebug --with-openssl=/usr/local/opt/openssl --prefix=/opt/python-dev
+      run: ./configure --with-pydebug --with-openssl=/usr/local/opt/openssl --prefix=/opt/python-dev --with-tcltk-includes=-I$(brew --prefix tcl-tk)/include --with-tcltk-libs="-L$(brew --prefix tcl-tk)/lib -ltcl8.6 -ltk8.6"
     - name: Build CPython
       run: make -j4
     - name: Display build info