Python: Alter disablesCertificateValidation to fit our needs

For the snippet below, our current query is able to show _why_ we
consider `var` to be a falsey value that would disable SSL/TLS
verification. I'm not sure we're going to need the part that Ruby did,
for being able to specify _where_ the verification was removed, but
we'll see.

```
requests.get(url, verify=var)
```

python/ql/test/experimental/meta/ConceptsTest.qll

@@ -479,7 +479,9 @@ class CryptographicOperationTest extends InlineExpectationsTest {
 class HttpClientRequestTest extends InlineExpectationsTest {
   HttpClientRequestTest() { this = "HttpClientRequestTest" }
 
-  override string getARelevantTag() { result = "clientRequestUrl" }
+  override string getARelevantTag() {
+    result in ["clientRequestUrl", "clientRequestDisablesCertValidation"]
+  }
 
   override predicate hasActualResult(Location location, string element, string tag, string value) {
     exists(location.getFile().getRelativePath()) and
@@ -490,5 +492,14 @@ class HttpClientRequestTest extends InlineExpectationsTest {
       value = prettyNodeForInlineTest(url) and
       tag = "clientRequestUrl"
     )
+    or
+    exists(location.getFile().getRelativePath()) and
+    exists(HTTP::Client::Request req, DataFlow::Node disablingNode |
+      req.disablesCertificateValidation(disablingNode, _) and
+      location = disablingNode.getLocation() and
+      element = disablingNode.toString() and
+      value = prettyNodeForInlineTest(disablingNode) and
+      tag = "clientRequestDisablesCertValidation"
+    )
   }
 }