chore(release): update mac os version to 11

10.15 was deprecated and removed from setup-ruby and gh runners

Author: korniltsev

.github/workflows/release.yml

@@ -239,9 +239,9 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - macos-version: "10.15"
+          - macos-version: "11.0"
             target: x86_64-apple-darwin
-            py-platform: macosx-10_15_x86_64
+            py-platform: macosx-11_0_x86_64
           - macos-version: "11.0"
             target: aarch64-apple-darwin
             py-platform: macosx-11_0_arm64
@@ -465,9 +465,9 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - macos-version: "10.15"
+          - macos-version: "11.0"
             target: x86_64-apple-darwin
-            py-platform: macosx-10_15_x86_64
+            py-platform: macosx-11_0_x86_64
           - macos-version: "11.0"
             target: aarch64-apple-darwin
             py-platform: macosx-11_0_arm64