fix: add custom max-old-space-size on spreaheads [skip ci]

Author: daiyam

.github/workflows/publish-insider-spearhead.yml

@@ -18,6 +18,7 @@ env:
   ASSETS_REPOSITORY: ${{ github.repository }}-insiders
   BINARY_NAME: codium-insiders
   GH_REPO_PATH: ${{ github.repository }}
+  MAX_OLD_SPACE_SIZE: 12288
   ORG_NAME: ${{ github.repository_owner }}
   OS_NAME: osx
   SOURCEMAPS_REPOSITORY: ${{ github.repository_owner }}/sourcemaps

.github/workflows/publish-stable-spearhead.yml

@@ -18,6 +18,7 @@ env:
   ASSETS_REPOSITORY: ${{ github.repository }}
   BINARY_NAME: codium
   GH_REPO_PATH: ${{ github.repository }}
+  MAX_OLD_SPACE_SIZE: 12288
   ORG_NAME: ${{ github.repository_owner }}
   OS_NAME: osx
   SOURCEMAPS_REPOSITORY: ${{ github.repository_owner }}/sourcemaps