[exo] Rename file name for type inference test (#8604)

This commit renames following file:
TFLTypeInference.test.cpp -> TFLTypeInferenceRule.test.cpp

Signed-off-by: Cheongyo Bahk <ch.bahk@samsung.com>

diff --git a/compiler/exo/src/Dialect/Service/TFLTypeInference.test.cpp b/compiler/exo/src/Dialect/Service/TFLTypeInferenceRule.test.cpp
similarity index 100%
rename from compiler/exo/src/Dialect/Service/TFLTypeInference.test.cpp
rename to compiler/exo/src/Dialect/Service/TFLTypeInferenceRule.test.cpp