package/python-pymupdf: fix tarball name for sha256

Fix tarball name for sha256 which is wrong since the addition of the
package in commit 71f7fc8a27af383d3307945bf6e880491cb74bd4

While at it, also update indentation to 2 spaces

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/python-pymupdf/python-pymupdf.hash

@@ -1,3 +1,3 @@
 # md5, sha256 from https://pypi.org/pypi/pymupdf/json
-md5	0e924bbb7364ba63df65d33fee9656f0  PyMuPDF-1.16.0.tar.gz
-sha256	1a6cc5b8b0fb9aa16bfa453fdfed445398f00d2556e78d90ba54cdce8d900857  python-pymupdf-1.16.0.tar.gz
+md5  0e924bbb7364ba63df65d33fee9656f0  PyMuPDF-1.16.0.tar.gz
+sha256  1a6cc5b8b0fb9aa16bfa453fdfed445398f00d2556e78d90ba54cdce8d900857  PyMuPDF-1.16.0.tar.gz