Add Codecov token (required in v4)

The token is stored as a secret in the GitHub repository settings.
According to the docs, PRs should still get coverage results although
they cannot access the token:

> Tokenless uploading is unsupported. However, PRs made from forks to
the upstream public repos will support tokenless (e.g. contributors to
OS projects do not need the upstream repo's Codecov token)

source: https://github.com/codecov/codecov-action?tab=readme-ov-file#breaking-changes

The token is additionally stored as a Dependabot secret so Dependabot
can also upload coverage results.

Signed-off-by: Florian Hockmann <fh@florian-hockmann.de>
(cherry picked from commit 7660660)

.github/workflows/ci-backend-cql.yml

@@ -248,6 +248,8 @@ jobs:
           name: jacoco-reports
           path: target/jacoco-combined.exec
       - uses: codecov/codecov-action@v4
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
         with:
           name: codecov-cql-${{ matrix.name }}-java-${{ matrix.java }}
 

.github/workflows/ci-backend-hbase.yml

@@ -113,5 +113,7 @@ jobs:
           name: jacoco-reports
           path: target/jacoco-combined.exec
       - uses: codecov/codecov-action@v4
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
         with:
           name: codecov-hbase-${{ matrix.name }}-java-${{ matrix.java }}

.github/workflows/ci-backend-scylla.yml

@@ -144,5 +144,7 @@ jobs:
           name: jacoco-reports
           path: target/jacoco-combined.exec
       - uses: codecov/codecov-action@v4
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
         with:
           name: codecov-cql-${{ matrix.name }}-java-${{ matrix.java }}

.github/workflows/ci-core.yml

@@ -140,5 +140,7 @@ jobs:
           name: jacoco-reports
           path: target/jacoco-combined.exec
       - uses: codecov/codecov-action@v4
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
         with:
           name: codecov-core-${{ matrix.module }}-java-${{ matrix.java }}

.github/workflows/ci-index-es.yml

@@ -123,5 +123,7 @@ jobs:
           name: jacoco-reports
           path: target/jacoco-combined.exec
       - uses: codecov/codecov-action@v4
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
         with:
           name: codecov-index-${{ matrix.name }}-java-${{ matrix.java }}

.github/workflows/ci-index-solr.yml

@@ -96,5 +96,7 @@ jobs:
           name: jacoco-reports
           path: target/jacoco-combined.exec
       - uses: codecov/codecov-action@v4
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
         with:
           name: codecov-index-${{ matrix.name }}-java-${{ matrix.java }}