Increase CI build timeouts. (#26954)

Saw coverage hit timeout in https://github.com/project-chip/connectedhomeip/actions/runs/5123311349/jobs/9213629956?pr=26952

Saw QPG timeout in https://github.com/project-chip/connectedhomeip/actions/runs/5123311361/jobs/9213628661

Co-authored-by: Andrei Litvin <andreilitvin@google.com>
diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 8dfc708..55fcf9f 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -528,5 +528,5 @@
                       .environment/pigweed-venv/*.log
 
             - name: Run Build Coverage
-              timeout-minutes: 20
+              timeout-minutes: 30
               run: ./scripts/build_coverage.sh
diff --git a/.github/workflows/examples-qpg.yaml b/.github/workflows/examples-qpg.yaml
index 4d929fb..9bd263a 100644
--- a/.github/workflows/examples-qpg.yaml
+++ b/.github/workflows/examples-qpg.yaml
@@ -82,7 +82,7 @@
                       .environment/pigweed-venv/*.log
 
             - name: Build QPG6105 example apps
-              timeout-minutes: 20
+              timeout-minutes: 30
               run: |
                   ./scripts/run_in_build_env.sh \
                      "./scripts/build/build_examples.py \