.git-blame-ignore-revs: Add python packages reformat

+3
.git-blame-ignore-revs
···
# k3s: format with nixfmt-rfc-style
6cfcd3c75428ede517bc6b15a353d704837a2830
+
+
# python3Packages: format with nixfmt
+
59b1aef59071cae6e87859dc65de973d2cc595c0