Update nightly version to be the same as MobileCoin repo

remove the notify from discord

.github/workflows/ci.yaml

@@ -93,7 +93,7 @@ jobs:
         rust:
           - stable
           - beta
-          - nightly-2022-12-13
+          - nightly-2023-10-01
     steps:
       - uses: actions/checkout@v4
       - uses: mobilecoinfoundation/actions/sgxsdk@main
@@ -117,7 +117,7 @@ jobs:
         rust:
           - stable
           - beta
-          - nightly-2022-12-13
+          - nightly-2023-10-01
     steps:
       - uses: actions/checkout@v4
       - uses: mobilecoinfoundation/actions/sgxsdk@main
@@ -141,7 +141,7 @@ jobs:
         rust:
           - stable
           - beta
-          - nightly-2022-12-13
+          - nightly-2023-10-01
     steps:
       - uses: actions/checkout@v4
       - uses: mobilecoinfoundation/actions/sgxsdk@main
@@ -224,7 +224,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2022-12-13
+          toolchain: nightly-2023-10-01
           targets: ${{ matrix.target }},x86_64-unknown-linux-gnu
           components: rust-src
       - uses: r7kamura/rust-problem-matchers@v1
@@ -235,31 +235,4 @@ jobs:
           cargo metadata --no-deps --format-version=1 |  \
             jq -r '.packages[].name' | \
             grep -e types | \
-            xargs -n1 sh -c 'cargo +nightly-2022-12-13 build -Z build-std=core --target ${{ matrix.target }} -p $0 --locked || exit 255'
-
-  notify:
-    runs-on: ubuntu-latest
-    if: failure() && ${{ github.event_name }} == 'push'
-    needs:
-      - "lint"
-      - "deny"
-      - "sort"
-      - "clippy"
-      - "build"
-      - "build-no-alloc"
-      - "test"
-      - "doc"
-      - "coverage"
-    steps:
-      - name: Notify Discord on failure
-        uses: sarisia/actions-status-discord@v1
-        with:
-          username: "Github Actions"
-          status: Failure
-          nodetail: true
-          title: "Workflow: ${{ github.workflow }}"
-          url: ${{ github.repository_url }}/actions/runs/${{ github.run_id }}
-          description: |
-            [@${{ github.pusher }}](${{ github.url }}/${{ github.pusher }}] was the last one to touch ${{ github.repository }}, is all I'm saying...
-          avatar_url: "https://media0.giphy.com/media/oe33xf3B50fsc/200.gif"
-          webhook: ${{ secrets.DISCORD_WEBHOOK }}
+            xargs -n1 sh -c 'cargo +nightly-2023-10-01 build -Z build-std=core --target ${{ matrix.target }} -p $0 --locked || exit 255'