CI: Use arm-picolibc-default instead of arm-picolibc-eabi

arm-picolibc-eabi builds many multilib combinations which causes the
free tier github action runners to run out of disk space. Use
arm-picolibc-default instead so there is still some coverage of picolibc
in CI.

Signed-off-by: Chris Packham <judge.packham@gmail.com>

.github/workflows/build-toolchains.yml

@@ -35,10 +35,6 @@ jobs:
           - {host: "macos-latest", sample: "mips-unknown-linux-gnu"}
           - {host: "macos-latest", sample: "mips64-unknown-linux-gnu"}
 
-          # Exclude arm-picolibc-eabi because the multilib build output takes
-          # up too much room on the macos makers
-          - {host: "macos-latest", sample: "arm-picolibc-eabi"}
-
           # Exclude x86_64-w64-mingw32,x86_64-pc-linux-gnu because it crashes on m4 build with
           # a Segmentation fault
           - {host: "macos-latest", sample: "x86_64-w64-mingw32,x86_64-pc-linux-gnu"}

.github/workflows/continuous-integration-workflow.yml

@@ -99,7 +99,7 @@ jobs:
           "arc-multilib-elf32",
           "arc-multilib-linux-gnu",
           "arc-multilib-linux-uclibc",
-          "arm-picolibc-eabi",
+          "arm-picolibc-default",
           "arm-unknown-linux-gnueabi",
           "arm-unknown-linux-musleabi",
           "armv6-nommu-linux-uclibcgnueabi",