CI: Switch from 1.10-nightly to 1.13-nightly (#361)

* CI: Switch from 1.10-nightly to 1.13-nightly

* Fix another location of 1.10-nightly to 1.13-nightly

Author: DilumAluthge

.github/workflows/example-builds-nightly-defaultarch.yml

@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        julia-version: [nightly, 1.10-nightly]
+        julia-version: [nightly, 1.13-nightly]
         os:
           - ubuntu-latest
           - windows-latest

.github/workflows/example-builds-nightly.yml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        julia-version: [nightly, 1.10-nightly]
+        julia-version: [nightly, 1.13-nightly]
         julia-arch: [x64, x86]
         os: [ubuntu-latest, macOS-latest, windows-latest]
         # 32-bit Julia binaries are not available on macOS