Bump pygments from 2.7.4 to 2.15.0

Bumps [pygments](https://github.com/pygments/pygments) from 2.7.4 to 2.15.0.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.7.4...2.15.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
-Pygments==2.7.4
+Pygments==2.15.0
 click==6.6
 discogs-client==2.2.1
 oauthlib==1.1.1

setup.py

@@ -26,7 +26,7 @@
     url='https://github.com/jesseward/discogs-cli',
     license='MIT',
     install_requires=[
-        'Pygments==2.7.4',
+        'Pygments==2.15.0',
         'click==6.7',
         'discogs-client==2.2.1',
         'prompt-toolkit==1.0.13',