chore(deps): update actions/setup-go action to v6 (elastic#1301)

Co-authored-by: elastic-renovate-prod[bot] <174716857+elastic-renovate-prod[bot]@users.noreply.github.com>

Author: elastic-renovate-prod[bot]

.github/workflows/copilot-setup-steps.yml

@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
-      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5
+      - uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6
         with:
           go-version-file: 'go.mod'
           cache: true

.github/workflows/test.yml

@@ -19,7 +19,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
-      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5
+      - uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6
         with:
           go-version-file: 'go.mod'
           cache: true
@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
-      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5
+      - uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6
         with:
           go-version-file: 'go.mod'
           cache: true
@@ -130,7 +130,7 @@ jobs:
           - '9.0.3'
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
-      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5
+      - uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6
         with:
           go-version-file: 'go.mod'
           cache: true

libs/go-kibana-rest/.github/workflows/workflow.yml

@@ -20,7 +20,7 @@ jobs:
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
       - name: Setup Go
-        uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5
+        uses: actions/setup-go@44694675825211faa026b3c33043df3e48a5fa00 # v6
         with:
           go-version: "1.22"
       - name: Setup Elasticsearch / Kibana