Update default temporary dir path from /tmp to /home/tmp

This should avoid physical memory restrictions set in place for `tmpfs` (aka `/tmp`) that prevent us from utilzing more than 50% of the available physical memory on our EBS.

Signed-off-by: Courtney Pacheco <6019922+courtneypacheco@users.noreply.github.com>

Author: courtneypacheco

.github/workflows/e2e-nvidia-l4-x1.yml

@@ -26,6 +26,7 @@ concurrency:
 
 env:
   LC_ALL: en_US.UTF-8
+  TMPDIR: /home/tmp
 
 defaults:
   run:
@@ -81,6 +82,7 @@ jobs:
       - name: Install Packages
         run: |
           cat /etc/os-release
+          mkdir -p "${TMPDIR}"
           sudo dnf install -y gcc gcc-c++ make git python3.11 python3.11-devel
 
       - name: Checkout instructlab/instructlab

.github/workflows/e2e-nvidia-l40s-x4.yml

@@ -12,6 +12,9 @@ on:
         required: true
         default: 'main'
 
+env:
+  TMPDIR: /home/tmp
+
 jobs:
   start-large-ec2-runner:
     runs-on: ubuntu-latest
@@ -57,6 +60,7 @@ jobs:
       - name: Install Packages
         run: |
           cat /etc/os-release
+          mkdir -p "${TMPDIR}"
           sudo dnf install -y gcc gcc-c++ make git python3.11 python3.11-devel
 
       - name: Checkout instructlab/instructlab