Bump ModelingToolkit and ModelingToolkitBase for release

Releases unreleased fixes on master:
- ModelingToolkitBase 1.54.1 -> 1.54.2 (allow parameter-only equations after mtkcompile; unbound-variable fix (#4738))
- ModelingToolkit 11.35.0 -> 11.35.1 (avoid eliminating irreducibles in eliminate_zero_variables!)

Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SFmcAmLrGPrGtzwP333mX8

Author: ChrisRackauckas

Project.toml

@@ -1,6 +1,6 @@
 name = "ModelingToolkit"
 uuid = "961ee093-0014-501f-94e3-6117800e7a78"
-version = "11.35.0"
+version = "11.35.1"
 authors = ["Yingbo Ma <mayingbo5@gmail.com>", "Chris Rackauckas <accounts@chrisrackauckas.com> and contributors"]
 
 [deps]

lib/ModelingToolkitBase/Project.toml

@@ -1,7 +1,7 @@
 name = "ModelingToolkitBase"
 uuid = "7771a370-6774-4173-bd38-47e70ca0b839"
 authors = ["Yingbo Ma <mayingbo5@gmail.com>", "Chris Rackauckas <accounts@chrisrackauckas.com> and contributors"]
-version = "1.54.1"
+version = "1.54.2"
 
 [deps]
 ADTypes = "47edcb42-4c32-4615-8424-f2b9edc5f35b"