global: bump PYTHON.json version to 1

I think this is good enough to formalize as a stable version.

Author: indygreg

README.rst

@@ -259,8 +259,7 @@ without having to resort to heuristics.
 The file contains a JSON map. This map has the following keys:
 
 version
-   Version number of the file format. Currently ``0`` until semantics are
-   stabilized.
+   Version number of the file format. Currently ``1``.
 
 os
    Target operating system for the distribution. e.g. ``linux``, ``macos``,

cpython-linux/build.py

@@ -651,8 +651,7 @@ def build_cpython(client, image, platform, optimized=False):
 
         # Create PYTHON.json file describing this distribution.
         python_info = {
-            # TODO bump version number once format is somewhat stable.
-            'version': '0',
+            'version': '1',
             'os': 'linux',
             'arch': 'x86_64',
             'python_flavor': 'cpython',

cpython-macos/build.py

@@ -365,8 +365,7 @@ def build_cpython(optimized=False):
 
         # Create PYTHON.json file describing this distribution.
         python_info = {
-            # TODO bump version number once format is somewhat stable.
-            'version': '0',
+            'version': '1',
             'os': 'macos',
             'arch': 'x86_64',
             'python_flavor': 'cpython',

cpython-windows/build.py

@@ -1363,8 +1363,7 @@ def build_cpython(pgo=False):
 
         # Create PYTHON.json file describing this distribution.
         python_info = {
-            # TODO bump version number once format is somewhat stable.
-            'version': '0',
+            'version': '1',
             'os': 'windows',
             'arch': 'x86_64',
             'python_flavor': 'cpython',