--force --overwrite for all brew install targets to fix some strange …

…behavior on Github actions when installing packages on Mac (seems to be caused by packages preinstalled by Github)

.github/workflows/build.yml

@@ -86,7 +86,7 @@ jobs:
       - name: Checkout submodules
         run: git submodule update --init --recursive
       - name: install dependencies
-        run: brew install cmake && brew install glpk && brew tap coin-or-tools/coinor && brew install coin-or-tools/coinor/cbc
+        run: brew install --force --overwrite cmake && brew install --force --overwrite glpk && brew tap coin-or-tools/coinor && brew install --force --overwrite coin-or-tools/coinor/cbc
       - name: cmake
         run: mkdir build && cd build && cmake ..
       - name: make
@@ -101,7 +101,7 @@ jobs:
       - name: Checkout submodules
         run: git submodule update --init --recursive
       - name: install dependencies
-        run: brew install cmake && brew install glpk && brew tap coin-or-tools/coinor && brew install coin-or-tools/coinor/cbc
+        run: brew install --force --overwrite cmake && brew install --force --overwrite glpk && brew tap coin-or-tools/coinor && brew install --force --overwrite coin-or-tools/coinor/cbc
       - name: cmake
         run: mkdir build && cd build && cmake ..
       - name: make
@@ -116,7 +116,7 @@ jobs:
       - name: Checkout submodules
         run: git submodule update --init --recursive
       - name: install dependencies
-        run: brew install cmake && brew install glpk && brew tap coin-or-tools/coinor && brew install coin-or-tools/coinor/cbc
+        run: brew install --force --overwrite cmake && brew install --force --overwrite glpk && brew tap coin-or-tools/coinor && brew install --force --overwrite coin-or-tools/coinor/cbc
       - name: cmake
         run: mkdir build && cd build && cmake ..
       - name: make