Switch to build with unixodbc exclusively

Getting errors
```
In file included from /usr/local/include/sqlucode.h:784:
/usr/local/include/sqlext.h:1790:19: error: conflicting types for 'SQLDriverConnectW'
 1790 | SQLRETURN SQL_API SQLDriverConnect(
      |                   ^
/usr/local/include/sqlucode.h:765:26: note: expanded from macro 'SQLDriverConnect'
  765 | #define SQLDriverConnect        SQLDriverConnectW
      |                                 ^
/usr/local/include/sqlucode.h:257:19: note: previous declaration is here
  257 | SQLRETURN SQL_API SQLDriverConnectW(
      |                   ^
```
trying to see if switching to ARM macOS will fix the issue.

Author: alinaliBQ

.github/workflows/cpp.yml

@@ -237,8 +237,12 @@ jobs:
         run: |
           echo "ARROW_FLIGHT_SQL=ON" >> $GITHUB_ENV
           echo "ARROW_FLIGHT_SQL_ODBC=ON" >> $GITHUB_ENV
-          echo "ODBC_INCLUDE_DIR=/usr/local/Cellar/libiodbc/3.52.16/include" >> $GITHUB_ENV
-          echo "ODBC_LIBRARY=/usr/local/Cellar/libiodbc/3.52.16/lib/libiodbc.dylib" >> $GITHUB_ENV
+          echo "ODBC_INCLUDE_DIR=/usr/local/Cellar/unixodbc/2.3.14/include" >> $GITHUB_ENV
+          echo "ODBC_LIBRARY=/usr/local/Cellar/unixodbc/2.3.14/lib/libodbc.2.dylib" >> $GITHUB_ENV
+
+          # -AL- old code to use libiodbc
+          # echo "ODBC_INCLUDE_DIR=/usr/local/Cellar/libiodbc/3.52.16/include" >> $GITHUB_ENV
+          # echo "ODBC_LIBRARY=/usr/local/Cellar/libiodbc/3.52.16/lib/libiodbc.dylib" >> $GITHUB_ENV
           # -AL- check real path of libodbc
           realpath /usr/local/lib/libodbc.dylib
       - name: Install MinIO

cpp/Brewfile

@@ -28,7 +28,8 @@ brew "git"
 brew "glog"
 brew "googletest"
 brew "grpc"
-brew "libiodbc"
+# -AL- remove libiodbc to try unixodbc
+# brew "libiodbc"
 brew "llvm"
 brew "lz4"
 brew "mimalloc"
@@ -42,6 +43,7 @@ brew "rapidjson"
 brew "re2"
 brew "snappy"
 brew "thrift"
+brew "unixodbc"
 brew "utf8proc"
 brew "wget"
 brew "xsimd"