fix: align terraform resources with actual provider schema

Use nested attribute assignment instead of dynamic blocks for
specifications, quality_groups, and format_items. Remove unsupported
season_search_maximum_single_episode_age from indexer configs. Flatten
custom format specifications to use value/min/max directly.

config/custom_format/hvec_10bit.yaml

@@ -1,30 +1,22 @@
 include_custom_format_when_renaming: false
 specifications:
-  - name: 10bit
-    implementation: ReleaseTitleSpecification
-    negate: false
-    required: true
-    fields:
-      - name: value
-        value: "10bit"
-  - name: hvec
-    implementation: ReleaseTitleSpecification
-    negate: false
-    required: false
-    fields:
-      - name: value
-        value: "hvec"
-  - name: x265
-    implementation: ReleaseTitleSpecification
-    negate: false
-    required: true
-    fields:
-      - name: value
-        value: "(((x|h)\\.?265)|(HEVC))"
-  - name: "release_iVy: iVy"
-    implementation: ReleaseGroupSpecification
-    negate: false
-    required: true
-    fields:
-      - name: value
-        value: "-iVy$"
+- name: 10bit
+  implementation: ReleaseTitleSpecification
+  negate: false
+  required: true
+  value: 10bit
+- name: hvec
+  implementation: ReleaseTitleSpecification
+  negate: false
+  required: false
+  value: hvec
+- name: x265
+  implementation: ReleaseTitleSpecification
+  negate: false
+  required: true
+  value: (((x|h)\.?265)|(HEVC))
+- name: 'release_iVy: iVy'
+  implementation: ReleaseGroupSpecification
+  negate: false
+  required: true
+  value: -iVy$