Update cheatsheets

tldr/linux/dnf4

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# dnf4
+
+> Package manager for RHEL 8/9 and older Fedora versions (pre-41).
+> For equivalent commands in other package managers, see <https://wiki.archlinux.org/title/Pacman/Rosetta>.
+> More information: <https://dnf.readthedocs.io/en/latest/command_ref.html>.
+
+- Upgrade installed packages to the newest available versions:
+
+`sudo dnf4 {{[up|upgrade]}}`
+
+- Search packages via keywords:
+
+`dnf4 {{[se|search]}} {{keyword1 keyword2 ...}}`
+
+- Display details about a package:
+
+`dnf4 {{[if|info]}} {{package}}`
+
+- Install a new package (use `--assumeyes` to confirm all prompts automatically):
+
+`sudo dnf4 {{[in|install]}} {{package1 package2 ...}}`
+
+- Remove a package:
+
+`sudo dnf4 {{[rm|remove]}} {{package1 package2 ...}}`
+
+- List installed packages:
+
+`dnf4 {{[ls|list]}} --installed`
+
+- Find which packages provide a given command:
+
+`dnf4 {{[wp|provides]}} {{command}}`
+
+- View all past operations:
+
+`dnf4 {{[hist|history]}}`