Bump lief from 0.13.2 to 0.15.0

Bumps [lief](https://github.com/lief-project/LIEF) from 0.13.2 to 0.15.0.
- [Release notes](https://github.com/lief-project/LIEF/releases)
- [Commits](lief-project/LIEF@0.13.2...0.15.0)

---
updated-dependencies:
- dependency-name: lief
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

requirements-dev.txt

@@ -1,4 +1,4 @@
 capstone-gt
 gtirb
 gtirb-capstone
-lief==0.13.2
+lief==0.15.0