Bug 1839610 - bump taskgraph to 5.4.0

This fixes a bug in add-new-jobs and retrigger actions
(taskcluster/taskgraph#267)

taskcluster/requirements.txt

@@ -1,6 +1,6 @@
 #
-# This file is autogenerated by pip-compile with python 3.8
-# To update, run:
+# This file is autogenerated by pip-compile with Python 3.8
+# by the following command:
 #
 #    pip-compile --generate-hashes requirements.in
 #
@@ -15,9 +15,7 @@ arrow==1.2.3 \
 attrs==23.1.0 \
     --hash=sha256:1f28b4522cdc2fb4256ac1a020c78acf9cba2c6b461ccd2c126f3aa8e8335d04 \
     --hash=sha256:6279836d581513a26f1bf235f9acd333bc9115683f14f7e8fae46c98fc50e015
-    # via
-    #   mozilla-version
-    #   taskcluster-taskgraph
+    # via mozilla-version
 binaryornot==0.4.4 \
     --hash=sha256:359501dfc9d40632edc9fac890e19542db1a287bbcfa58175b66658392018061 \
     --hash=sha256:b8b71173c917bddcd2c16070412e369c3ed7f0528926f70cac18a6c97fd563e4
@@ -274,9 +272,9 @@ slugid==2.0.0 \
     --hash=sha256:a950d98b72691178bdd4d6c52743c4a2aa039207cf7a97d71060a111ff9ba297 \
     --hash=sha256:aec8b0e01c4ad32e38e12d609eab3ec912fd129aaf6b2ded0199b56a5f8fd67c
     # via taskcluster-taskgraph
-taskcluster-taskgraph==5.3.0 \
-    --hash=sha256:41be72368ffab5bc9d298b486f65602e25660d20153ce7ef7c0c961bc73ffa3c \
-    --hash=sha256:acc76984f3427074e5b64cf5f07c1871384e5c2653dbf1fdd0ab784ef1634416
+taskcluster-taskgraph==5.4.0 \
+    --hash=sha256:217ef7eadea441364916f68d06d8902a6135416f2ed4b7d0caa175c2711f2825 \
+    --hash=sha256:aae180089c10dacc429b04057e77a2f9255db53a10f6fc67fc78e718e94b8a45
     # via -r requirements.in
 taskcluster-urls==13.0.1 \
     --hash=sha256:5e25e7e6818e8877178b175ff43d2e6548afad72694aa125f404a7329ece0973 \