Update all EMCPy hashes

[kevindougherty-noaa]

Description

In my last PR, I only updated one requirement file for the new EMCPy hash. I believe I need to update them all.

Alos had to make adjustments to how eva handled the EMCPy map gridded plotting. All tests are passing as expected.

[kevindougherty-noaa]

@CoryMartin-NOAA @EdwardSafford-NOAA The changes to the map gridded plot are due to some tests inputting 1D lat/lon data and then looking for 3D data (i.e levels, lat, lon). So I had to add a bandaid that essentially rewrites data to 2D so the changes in EMCPy don't break. It has to do with how the plotting handles the cell centers and edges.

[Copilot]

Pull Request Overview

Updates EMCPy dependency hashes across all requirement files and refactors the EMCPy map gridded plotting to handle various grid configurations more robustly.

• Updates EMCPy git hash to 7794574611e760475d61eb5d9458af2d3d2191d8 in all requirement files
• Replaces the EMCPy map gridded plotting implementation with comprehensive handling for 1-D, 2-D, and 3-D grid configurations
• Adds robust data normalization logic to convert various input formats to the 2-D centers required by EMCPy

Reviewed Changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated 3 comments.

File	Description
src/eva/plotting/batch/emcpy/diagnostics/emcpy_map_gridded.py	Complete rewrite of EMCPy map gridded plotting with enhanced grid handling and data normalization
requirements_sles15.txt	Updates EMCPy git hash dependency
requirements-github.txt	Updates EMCPy git hash dependency

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[kevindougherty-noaa]

@CoryMartin-NOAA Do you mind taking a look at this?