Add blog post for week 17

Signed-off-by: Nikola Forró <nforro@redhat.com>

Author: nforro

weekly/2026/week-17.md

@@ -0,0 +1,16 @@
+---
+title: Week 17 in Packit
+date: 2026-04-27
+authors: nforro
+tags:
+  - 2026-April
+  - 2026
+  - April
+---
+
+## Week 17 (April 21st – April 27th)
+
+- We have fixed several cases of excessive job cancellation, in particular when retriggering
+  a job using the Re-run button on GitHub and when using commands such as `rebuild-failed`,
+  `retest-failed` or `test` with `--identifier`.
+  ([packit-service#3112](https://github.com/packit/packit-service/pull/3112))