[bazel][mlir] Add missing dep and include after 9b63bdd15418e90d0c6889d26e490db89ae744d1
This fixes issues when compiling SliceMatchers.h separately. In
particular, the missing include triggered a "member access into
incomplete type" error:
```
third_party/llvm/llvm-project/mlir/include/mlir/Query/Matcher/SliceMatchers.h:91:30: error: member access into incomplete type 'Operation'
91 | for (auto operand : subOp->getOperands()) {
| ^
third_party/llvm/llvm-project/mlir/include/mlir/Analysis/SliceAnalysis.h:20:7: note: forward declaration of 'mlir::Operation'
20 | class Operation;
| ^
```