Update qiskit requirement from ~=1.1.1 to ~=1.2.0 (#2482)

Updates the requirements on [qiskit](https://github.com/Qiskit/qiskit) to permit the latest version.
- [Release notes](https://github.com/Qiskit/qiskit/releases)
- [Changelog](https://github.com/Qiskit/qiskit/blob/1.2.0/docs/release_notes.rst)
- [Commits](Qiskit/qiskit@1.1.1...1.2.0)

---
updated-dependencies:
- dependency-name: qiskit
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements/requirements-qiskit.txt

@@ -1,4 +1,4 @@
-qiskit~=1.1.1
+qiskit~=1.2.0
 qiskit-aer~=0.14.2
 qiskit-ibm-runtime~=0.20.0
 ply==3.11