[bazel][mlir] Add missing dep and include after 9b63bdd

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;
      |       ^
```

Author: slackito

mlir/include/mlir/Query/Matcher/SliceMatchers.h

@@ -14,6 +14,7 @@
 #define MLIR_TOOLS_MLIRQUERY_MATCHERS_SLICEMATCHERS_H
 
 #include "mlir/Analysis/SliceAnalysis.h"
+#include "mlir/IR/Operation.h"
 
 /// A matcher encapsulating `getBackwardSlice` method from SliceAnalysis.h.
 /// Additionally, it limits the slice computation to a certain depth level using

utils/bazel/llvm-project-overlay/mlir/BUILD.bazel

@@ -12874,6 +12874,7 @@ cc_library(
     ),
     includes = ["include"],
     deps = [
+        ":Analysis",
         ":FuncDialect",
         ":IR",
         ":Reducer",