Updated ghcr.io/stac-utils/titiler-pgstac docker tag to v1.8.0 (#272)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

charts/eoapi/values.yaml

@@ -225,7 +225,7 @@ raster:
       requestRate: 100000m
   image:
     name: ghcr.io/stac-utils/titiler-pgstac
-    tag: 1.7.2
+    tag: 1.8.0
   command:
     - "uvicorn"
     - "titiler.pgstac.main:app"