Enable more network partitioning features on the bots.

In particular, enable partitioning Expect-CT state (which I forgot
to do when I implemented it some time back), Domain Reliability, and
NEL+Reporting.

We are planning to enable these on pre-release channels in January.

Bug: 1082280, 1138994, 993805, 969893
Change-Id: I27c973c410f484f2859eb7b63dd6adf67d610180
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2595610
Commit-Queue: Matt Menke <mmenke@chromium.org>
Reviewed-by: Emily Stark <estark@chromium.org>
Reviewed-by: Lily Chen <chlily@chromium.org>
Cr-Commit-Position: refs/heads/master@{#837811}

testing/variations/fieldtrial_testing_config.json

@@ -5479,10 +5479,13 @@
             ],
             "experiments": [
                 {
-                    "name": "Enabled4",
+                    "name": "Enabled5",
                     "enable_features": [
                         "PartitionConnectionsByNetworkIsolationKey",
+                        "PartitionDomainReliabilityByNetworkIsolationKey",
+                        "PartitionExpectCTStateByNetworkIsolationKey",
                         "PartitionHttpServerPropertiesByNetworkIsolationKey",
+                        "PartitionNelAndReportingByNetworkIsolationKey",
                         "PartitionSSLSessionsByNetworkIsolationKey",
                         "SplitHostCacheByNetworkIsolationKey"
                     ]