feat(strings/uuidv7): add UUIDv7 generation (#10)

The UUID v7 format is a time-ordered random UUID. It uses a timestamp
with millisecond precision in the most significant bits, followed by
random data. This provides both uniqueness and chronological ordering,
making it ideal for database primary keys and situations where sorting
by creation time is desired.

References:
- https://uuid7.com/
- https://www.ietf.org/archive/id/draft-peabody-dispatch-new-uuid-format-04.html#name-uuid-version-7

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
         with:
-          go-version-file: 'go.mod'
+          go-version-file: "go.mod"
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v6
         with:
@@ -25,7 +25,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
         with:
-          go-version-file: 'go.mod'
+          go-version-file: "go.mod"
       - name: Check if mods are tidy
         run: make check-tidy
 
@@ -37,7 +37,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
         with:
-          go-version-file: 'go.mod'
+          go-version-file: "go.mod"
       - name: Run benchmarks
         run: make bench | tee output.raw
       - name: Fix benchmark names
@@ -61,7 +61,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
         with:
-          go-version-file: 'go.mod'
+          go-version-file: "go.mod"
       - name: Publish coverage
         uses: paambaati/codeclimate-action@v9
         env:
@@ -109,7 +109,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
         with:
-          go-version-file: 'go.mod'
+          go-version-file: "go.mod"
       - name: Run benchmarks
         run: make bench | tee output.raw
       - name: Fix benchmark names