Merge PR #408 (Bump pip from 25.2 to 26.0)

This merge brings PR #408 (Bump pip fromm 25.2 to 26.0,
by @dependabot) into the GCPy 1.7.1 development stream.

This fixes a security issue discovered by @dependabot.

Signed-off-by: Bob Yantosca <yantosca@seas.harvard.edu>

Author: yantosca

CHANGELOG.md

@@ -6,7 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased] - TBD
 ### Changed
-- Bumped `pip` to version 25.3 in `setup.py` and environment files
+- Bumped `pip` to version 26.0 in `setup.py` and environment files
 
 ## [1.7.0] - 2026-01-29
 ### Added

docs/environment_files/gcpy_environment_py312.yml

@@ -26,7 +26,7 @@ dependencies:
   - netcdf-fortran ==4.6.1      # Python wrapper for netCDF-Fortran
   - numpy          ==1.26.4     # Optimized mathematical functions
   - pandas         ==2.2.2      # Tables/timeseries manipulation
-  - pip            ==25.3       # Install packages from PyPi
+  - pip            ==26.0       # Install packages from PyPi
   - pylint         ==3.2.2      # Python linter
   - pyproj         ==3.6.1      # Python map projections library
   - python         ==3.12.0     # Python language

docs/environment_files/gcpy_environment_py313.yml

@@ -26,7 +26,7 @@ dependencies:
   - netcdf-fortran ==4.6.1      # Python wrapper for netCDF-Fortran
   - numpy          ==2.1.3      # Optimized mathematical functions
   - pandas         ==2.2.3      # Tables/timeseries manipulation
-  - pip            ==25.3       # Install packages from PyPi
+  - pip            ==26.0       # Install packages from PyPi
   - pylint         ==3.3.4      # Python linter
   - pyproj         ==3.7.1      # Python map projections library
   - python         ==3.13       # Python language

setup.py

@@ -105,7 +105,7 @@ def _write_version_file():
         "netcdf-fortran==4.6.1",
         "numpy==2.1.3",
         "pandas==2.2.3",
-        "pip==25.3",
+        "pip==26.0",
         "pylint==3.3.4",
         "pyproj==3.7.1",
         "python==3.13",