Fix eating of exceptions

Bug was introduced in jenkinsci#839, as discussed here jenkinsci#839 (review)

src/main/java/com/cloudbees/jenkins/plugins/bitbucket/client/BitbucketCloudApiClient.java

@@ -548,7 +548,10 @@ public BitbucketCommit resolveCommit(@NonNull String hash) throws IOException, I
             } else {
                 return request.call();
             }
-        } catch (Exception ex) {
+        } catch (IOException | InterruptedException ex) {
+            throw ex;
+        }
+        catch (Exception ex) {
             return null;
         }
     }