ci: Increase timeout for valgrind tasks

Author: real-or-random

.cirrus.yml

@@ -293,6 +293,7 @@ task:
         # The `--error-exitcode` is required to make the test fail if valgrind found errors, otherwise it'll return 0 (https://www.valgrind.org/docs/manual/manual-core.html)
         WRAPPER_CMD: "valgrind --error-exitcode=42"
         SECP256K1_TEST_ITERS: 2
+      timeout_in: 90m
     - name: "UBSan, ASan, LSan"
       env:
         CFLAGS: "-fsanitize=undefined,address -g"