avro tools 1.7.6

Closes #27676.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Migrate dotwrp, qrupdate, slicot to homebrew-science

Closes #27743.
gifsicle 1.82

Closes #27936.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>