[ENH] Pin spm-runtime version

Author: balbasty

pyproject.toml

@@ -30,24 +30,24 @@ classifiers = [
 ]
 dependencies = [
     "mpython-core",
-    "spm-runtime-R2025a; python_version>='3.9' and python_version<'3.13'",
-    "spm-runtime-R2023a; python_version=='3.8'",
-    "spm-runtime-R2021b; python_version=='3.7'",
-    "spm-runtime-R2020b; python_version=='3.6'",
+    "spm-runtime-R2025a=='25.1'; python_version>='3.9' and python_version<'3.13'",
+    "spm-runtime-R2023a=='25.1'; python_version=='3.8'",
+    "spm-runtime-R2021b=='25.1'; python_version=='3.7'",
+    "spm-runtime-R2020b=='25.1'; python_version=='3.6'",
 ]
 
 [project.optional-dependencies]
-latest = ["spm-runtime"]
-R2025a = ["spm-runtime-R2025a"]
-R2024b = ["spm-runtime-R2024b"]
-R2024a = ["spm-runtime-R2024a"]
-R2023b = ["spm-runtime-R2023b"]
-R2023a = ["spm-runtime-R2023a"]
-R2022b = ["spm-runtime-R2022b"]
-R2022a = ["spm-runtime-R2022a"]
-R2021b = ["spm-runtime-R2021b"]
-R2021a = ["spm-runtime-R2021a"]
-R2020b = ["spm-runtime-R2020b"]
+latest = ["spm-runtime=='25.1'"]
+R2025a = ["spm-runtime-R2025a=='25.1'"]
+R2024b = ["spm-runtime-R2024b=='25.1'"]
+R2024a = ["spm-runtime-R2024a=='25.1'"]
+R2023b = ["spm-runtime-R2023b=='25.1'"]
+R2023a = ["spm-runtime-R2023a=='25.1'"]
+R2022b = ["spm-runtime-R2022b=='25.1'"]
+R2022a = ["spm-runtime-R2022a=='25.1'"]
+R2021b = ["spm-runtime-R2021b=='25.1'"]
+R2021a = ["spm-runtime-R2021a=='25.1'"]
+R2020b = ["spm-runtime-R2020b=='25.1'"]
 
 [project.urls]
 Repository = "https://github.com/spm/spm-python"