Fix bazel build: Add missing dependency on integer_expr.
Fix bazel build: Add missing dependency on integer_expr.

or-tools/or-tools,or-tools/or-tools,google/or-tools,google/or-tools,or-tools/or-tools,google/or-tools,or-tools/or-tools,legrosbuffle/or-tools,google/or-tools,legrosbuffle/or-tools,legrosbuffle/or-tools,google/or-tools,or-tools/or-tools,google/or-tools,or-tools/or-tools,legrosbuffle/or-tools,legrosbuffle/or-tools