[devtools] Temporarily disable non-deterministic test

This test was not flaking because V8 forced a GC to suppress
non-deterministm. Temporarily disabling to fix the issue.

Bug: chromium:1019613
Change-Id: If0b4e8bbc135cd815e9f8a6765098cfa57a8eb96
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1889651Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#710711}

third_party/blink/web_tests/TestExpectations

@@ -5760,3 +5760,6 @@ crbug.com/1016772 http/tests/devtools/sources/debugger-ui/source-url-comment.js
 
 # Temporarily disabled for landing initiator chain changes in DevTools
 crbug.com/842488 http/tests/devtools/network/network-initiator-chain.js [ Pass Failure ]
+
+# Temporarily disabled to a breakpoint non-determinism issue.
+crbug.com/1019613 http/tests/devtools/sources/debugger/debug-inlined-scripts.js [ Pass Failure ]