Add CodeQL v2.17.6 to default test versions

Author: henrymercer

.github/workflows/__go-custom-queries.yml

@@ -26,6 +26,8 @@ jobs:
         - stable-v2.13.5
         - stable-v2.14.6
         - stable-v2.15.5
+        - stable-v2.16.6
+        - stable-v2.17.6
         - default
         - linked
         - nightly-latest

.github/workflows/__go-tracing-autobuilder.yml

@@ -15,6 +15,8 @@
     "stable-v2.15.5",
     # The last CodeQL release in the 2.16 series.
     "stable-v2.16.6",
+    # The last CodeQL release in the 2.17 series.
+    "stable-v2.17.6",
     # The default version of CodeQL for Dotcom, as determined by feature flags.
     "default",
     # The version of CodeQL shipped with the Action in `defaults.json`. During the release process