Fix Android build breakage

Summary:
Fix the build error
```
fbcode/wangle/ssl/TLSCredProcessor.cpp:89:7: error: implicit capture of 'this' with a capture default of '=' is deprecated [-Werror,-Wdeprecated-this-capture]
   89 |       ticketFileUpdated(ticketFile_, password_);
      |       ^
fbcode/wangle/ssl/TLSCredProcessor.cpp:88:31: note: add an explicit capture of 'this' to capture '*this' by reference
   88 |     auto ticketsChangedCob = [=]() {
      |                               ^
      |                                , this
1 error generated.
```

Differential Revision: D65746673

fbshipit-source-id: 6ef3352183d0ba8de2e3e4114c5ba2917bbab253

wangle/ssl/TLSCredProcessor.cpp

@@ -85,7 +85,7 @@ void TLSCredProcessor::setTicketPathToWatch(
   ticketFile_ = ticketFile;
   password_ = password;
   if (!ticketFile_.empty()) {
-    auto ticketsChangedCob = [=]() {
+    auto ticketsChangedCob = [this]() {
       ticketFileUpdated(ticketFile_, password_);
     };
     poller_->addFileToTrack(ticketFile_, ticketsChangedCob);