mksquashfs: add page and Polish translation (#10117)

pages/linux/mksquashfs.md

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+# mksquashfs
+
+> Create or append files and directories to squashfs filesystems.
+> More information: <https://manned.org/mksquashfs>.
+
+- Create or append files and directories to a squashfs filesystem (compressed using `gzip` by default):
+
+`mksquashfs {{path/to/file_or_directory1 path/to/file_or_directory2 ...}} {{filesystem.squashfs}}`
+
+- Create or append files and directories to a squashfs filesystem, using a specific [comp]ression algorithm:
+
+`mksquashfs {{path/to/file_or_directory1 path/to/file_or_directory2 ...}} {{filesystem.squashfs}} -comp {{gzip|lzo|lz4|xz|zstd|lzma}}`
+
+- Create or append files and directories to a squashfs filesystem, [e]xcluding some of them:
+
+`mksquashfs {{path/to/file_or_directory1 path/to/file_or_directory2 ...}} {{filesystem.squashfs}} -e {{file|directory1 file|directory2 ...}}`
+
+- Create or append files and directories to a squashfs filesystem, [e]xcluding those ending with `.gz`:
+
+`mksquashfs {{path/to/file_or_directory1 path/to/file_or_directory2 ...}} {{filesystem.squashfs}} -wildcards -e "{{*.gz}}"`
+
+- Create or append files and directories to a squashfs filesystem, [e]xcluding those matching a regular expression:
+
+`mksquashfs {{path/to/file_or_directory1 path/to/file_or_directory2 ...}} {{filesystem.squashfs}} -regex -e "{{regular_expression}}"`