Set disableHtmlEscaping when creating GsonBuilder (#179)

Otherwise, if filename contains symbols like '=' it gets serialized to
'\u003d' which causes parsing to fail during `get-impacted-targets`.

Co-authored-by: Maxwell Elliott <[email protected]>

Author: tgeng

cli/src/main/kotlin/com/bazel_diff/di/Modules.kt

@@ -68,5 +68,5 @@ fun loggingModule(verbose: Boolean) = module {
 }
 
 fun serialisationModule() = module {
-    single { GsonBuilder().setPrettyPrinting().create() }
+    single { GsonBuilder().disableHtmlEscaping().setPrettyPrinting().create() }
 }

cli/src/test/kotlin/com/bazel_diff/Modules.kt

@@ -21,7 +21,7 @@ fun testModule(): Module = module {
     single { TargetHasher() }
     single { RuleHasher(emptySet()) }
     single { SourceFileHasher() }
-    single { GsonBuilder().setPrettyPrinting().create() }
+    single { GsonBuilder().disableHtmlEscaping().setPrettyPrinting().create() }
     single(named("working-directory")) { Paths.get("working-directory") }
     single(named("output-base")) { Paths.get("output-base") }
     single { ContentHashProvider(null) }