Fix minor copy/paste errors in GitHub workflow configs (#2672)

.github/workflows/bandit.yaml

@@ -1,7 +1,7 @@
 on: [ push, pull_request ]
 name: Bandit security checkup
 jobs:
-    flake8:
+    bandit:
         runs-on: ubuntu-latest
         container:
             image: archlinux/archlinux:latest

.github/workflows/flake8.yaml

@@ -14,7 +14,7 @@ jobs:
                 pacman --noconfirm -Syyu
                 pacman --noconfirm -Sy python-pip python-pyparted python-simple-term-menu pkgconfig gcc
             - run: pip install --break-system-packages --upgrade pip
-            # this will install the exact version of mypy that is in the pyproject.toml file
+            # this will install the exact version of flake8 that is in the pyproject.toml file
             - name: Install archinstall dependencies
               run: pip install --break-system-packages .[dev]
             - run: python --version