Bump the monthly-updates group with 2 updates (#175)

Bumps the monthly-updates group with 2 updates:
[actions/checkout](https://github.com/actions/checkout) and
[ruby/setup-ruby](https://github.com/ruby/setup-ruby).

Updates `actions/checkout` from 6.0.3 to 7.0.0


Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/linux-ruby-head.yml

@@ -30,8 +30,8 @@ jobs:
           --health-retries 5
     name: Ruby ${{ matrix.ruby }} with PostgreSQL ${{ matrix.postgres }} unit testing on ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
-    - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+    - uses: ruby/setup-ruby@0dafeac902942906541bc140009cdbf32665b601 # v1.315.0
       with:
         ruby-version: ${{ matrix.ruby }}
         bundler-cache: true

.github/workflows/linux.yml

@@ -40,8 +40,8 @@ jobs:
           --health-retries 5
     name: Ruby ${{ matrix.ruby }} with PostgreSQL ${{ matrix.postgres }} unit testing on ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
-    - uses: ruby/setup-ruby@afeafc3d1ab54a631816aba4c914a0081c12ff2f # v1.310.0
+    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+    - uses: ruby/setup-ruby@0dafeac902942906541bc140009cdbf32665b601 # v1.315.0
       with:
         ruby-version: ${{ matrix.ruby }}
         bundler-cache: true