docs: update carbon champions for 2025 (carbon-design-system#4828)

* Update overview.mdx

* Update src/pages/contributing/get-started/overview.mdx

Co-authored-by: Rory-McDonald <rory.mcdonald@ibm.com>

* update heading format

* Update overview.mdx

* chore: format

---------

Co-authored-by: Rory-McDonald <rory.mcdonald@ibm.com>
Co-authored-by: Mahmoud <maradwan26@gmail.com>

Author: 3 people

src/pages/contributing/get-started/overview.mdx

@@ -120,46 +120,36 @@ projects.
 
 ## Carbon champions
 
-Many thanks to our 2024 Carbon champions for making significant contributions to
+Many thanks to our 2025 Carbon champions for making significant contributions to
 the design system.
 
 <Row className="mobile-columns">
 <Column className="one" colSm={2} colMd={2} colLg={3}>
 
-**Alan Greene**<br /> Community support<br /><br /> **Daniel Karl
-Weidele**<br /> Carbon Labs<br /><br /> **Krista Starr**<br />
-Accessibility<br /><br /> **Lily Peng**<br /> Carbon Labs<br /><br />
-**Priyanshu Rai**<br /> Carbon Labs<br /><br /> **Tom Waterton**<br /> Content
-enhancements<br /><br /> **Zak Crapo**<br /> Tag enhancements
+**Drew Glapa**<br /> Carbon Labs animated header<br /><br /> **Manuel Ramos
+Gonzalez**<br /> Carbon MCP Baseline Participant<br /><br /> **Ryan
+Downs**<br /> Carbon MCP Baseline Participant
 
 </Column>
 
 <Column className="one" colSm={2} colMd={2} colLg={3}>
 
-**Austin Viens-DeRuisseau**<br /> Data spreadsheet and datagrid<br /><br />
-**Gentry Baird**<br /> Login pattern and illustration<br /><br /> **Laura
-Marshall**<br /> Product gallery<br /><br /> **Manuel Ramos Gonzalez**<br />
-Datagrid<br /><br /> **Robyn Johnson**<br /> Acquisition migration<br /><br />
-**Twinkle Shah**<br /> Tag enhancements
+**Jigar Thakor**<br /> Carbon MCP Baseline Participant<br /><br /> **Marion
+Hekeler**<br /> Carbon Labs animated header
 
 </Column>
 
 <Column className="one" colSm={2} colMd={2} colLg={3}>
 
-**Bridget Ndegee**<br /> PLG onboarding<br /><br /> **Jeff Longshore**<br />
-Carbon for IBM Products<br /><br /> **Laura Snider**<br /> Content
-enhancements<br /><br /> **Owen Cornec**<br /> Carbon Labs<br /><br /> **Seonyu
-Kim**<br /> Datagrid<br /><br /> **Virginia Nicholson**<br /> Tag enhancements
+**Joseph Stowers**<br /> Carbon MCP Baseline Participant<br /><br /> **Mike
+Olasov**<br /> Carbon Labs animated header
 
 </Column>
 
 <Column className="one" colSm={2} colMd={2} colLg={3}>
 
-**Diana Sanborn**<br /> Sustainability PAL<br /><br /> **John Stickley**<br />
-Product handoff<br /><br /> **Lily Olive** <br /> Product gallery and
-tearsheet<br /><br /> **Paul Balchin**<br /> Carbon for IBM Products<br /><br />
-**Stephanie Cree**<br /> Tag enhancements<br /><br /> **Will Burroughs**<br />
-App and UI icons
+**Juan Encalada**<br /> Future Carbon Figma strategy<br /><br /> **Mudita
+Bhatia**<br /> Carbon MCP Baseline Participant
 
 </Column>
 </Row>