libva-utils 2.21.0

• vainfo: Print VAConfigAttribEncMaxTileRows and VAConfigAttribEncMaxTileCols
• test: Add Prime3 memtype support
• sample: Add back buffer size options for AV1e
• sample: simplify cbr/vbr interface and refine codes for AV1e
• fix: clean some unused variables and functions
• fix: unify the coding style
• fix: Fix coverity issues exposed in encode/decode/vpp
• fix: options in AV1 encode sample
• fix: fix typo of version in NEWS
• ci: harden permission for freebsd.yml
• ci: add workflow permission for all jobs
• ci: update freebsd vm to the v1 version
• meson: use meson setup instead of meson options