Update certifi and pycairo

Fixes https://github.com/flathub/flathub/security/dependabot/13

.github/actions/merge/requirements.txt

@@ -1,5 +1,5 @@
 #
-# This file is autogenerated by pip-compile with Python 3.11
+# This file is autogenerated by pip-compile with Python 3.12
 # by the following command:
 #
 #    pip-compile requirements.in
@@ -8,7 +8,7 @@ anyio==4.4.0
     # via gql
 backoff==2.2.1
     # via gql
-certifi==2024.6.2
+certifi==2024.7.4
     # via requests
 cffi==1.16.0
     # via
@@ -32,7 +32,7 @@ idna==3.7
     #   yarl
 multidict==6.0.5
     # via yarl
-pycairo==1.26.0
+pycairo==1.26.1
     # via pygobject
 pycparser==2.22
     # via cffi
@@ -43,9 +43,7 @@ pygithub==2.3.0
 pygobject==3.48.2
     # via -r requirements.in
 pyjwt[crypto]==2.8.0
-    # via
-    #   pygithub
-    #   pyjwt
+    # via pygithub
 pynacl==1.5.0
     # via pygithub
 pyyaml==6.0.1