[StaticAnalyzer] Use llvm::find_if (NFC) (#169237)

Identified with llvm-use-ranges.

Author: kazutakahirata

clang/lib/StaticAnalyzer/Core/SarifDiagnostics.cpp

@@ -202,11 +202,10 @@ SarifDiagnostics::createResult(const PathDiagnostic *Diag,
     // Find the HTML report that was generated for this issue, if one exists.
     PDFileEntry::ConsumerFiles *Files = FM->getFiles(*Diag);
     if (Files) {
-      auto HtmlFile =
-          std::find_if(Files->cbegin(), Files->cend(), [](auto &File) {
-            return File.first == HTML_DIAGNOSTICS_NAME;
-          });
-      if (HtmlFile != Files->cend()) {
+      auto HtmlFile = llvm::find_if(*Files, [](const auto &File) {
+        return File.first == HTML_DIAGNOSTICS_NAME;
+      });
+      if (HtmlFile != Files->end()) {
         SmallString<128> HtmlReportPath =
             llvm::sys::path::parent_path(OutputFile);
         llvm::sys::path::append(HtmlReportPath, HtmlFile->second);