Move Python bootstrap to 3rd CI pass

Python builds are relatively fast, but they produce a lot of data on the
disk, increasing pass2 tarball size unnecessarily.

Author: Googulator

steps/manifest

@@ -164,6 +164,7 @@ build: grep-3.7
 build: sed-4.8
 build: autogen-5.18.16
 build: musl-1.2.4
+jump: break ( INTERNAL_CI == pass1 ) # scripts are generated in pass1
 build: python-2.0.1
 build: python-2.0.1
 build: python-2.3.7
@@ -175,7 +176,6 @@ build: python-3.3.7
 build: python-3.4.10
 build: python-3.8.16
 build: python-3.11.1
-jump: break ( INTERNAL_CI == pass1 ) # scripts are generated in pass1
 build: gcc-10.4.0
 build: binutils-2.41
 build: gcc-13.1.0