docs: adapt adopters file with Mastercard contact information. [-]

- remove EPAC from the list

Author: Franziska Warncke

ADOPTERS.md

@@ -5,5 +5,5 @@ If you're using the Green Software Patterns, we'd love to add you to this list.
 | Organization | Description of Use | Contact |
 |--------------|--------------------|---------|
 | [AVEVA](https://www.aveva.com/en/)        |        Used the patterns as a way to measure the green software maturity of products teams. For additional details, please refer to our [Wiki](https://github.com/Green-Software-Foundation/patterns/wiki/Adoption-Stories#aveva).         |   Daniel Lazaro <br> :email: daniel.lazaro@aveva.com     |
-| [Mastercard](https://www.mastercard.co.uk/en-gb.html)   |    The Mastercard-specific catalogue enhances the GSF reference by providing tailored patterns across five categories—Architectural, Technology Stack & Tooling, Code and Algorithm, Methodology, and Operational Patterns—focused on optimizing efficiency and minimizing CO2 emissions while addressing the unique needs of Mastercard team. For additional details, please refer to our [Wiki](https://github.com/Green-Software-Foundation/patterns/wiki/Adoption-Stories#mastercard)          |      |
-| [EPAM](https://www.epam.com/) | They formed a diverse working group of Developers, Architects, Engineers, DevOps, Consultants, and PMs to conduct a critical audit of the patterns, fostering a culture of "like, love, adapt" to evolve GSF practices into actionable methodologies that seamlessly integrate with their established development approaches, ultimately enabling them to create greener software solutions for their clients. MFor additional details, please refer to our [Wiki](https://github.com/Green-Software-Foundation/patterns/wiki/Adoption-Stories#epam) | |
+| [Mastercard](https://www.mastercard.co.uk/en-gb.html)   |    The Mastercard-specific catalogue enhances the GSF reference by providing tailored patterns across five categories—Architectural, Technology Stack & Tooling, Code and Algorithm, Methodology, and Operational Patterns—focused on optimizing efficiency and minimizing CO2 emissions while addressing the unique needs of Mastercard team. For additional details, please refer to our [Wiki](https://github.com/Green-Software-Foundation/patterns/wiki/Adoption-Stories#mastercard)          |    Sébastien Le Callonnec <br> :email: Sebastien.LeCallonnec@mastercard.com  |
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