Fix SpotBugs SA_FIELD_SELF_ASSIGNMENT warnings in gzip package

- Removed redundant self-assignments in `InfBlocks.java` when restoring state in `case TYPE` and `case DRY`.
- Refactored `Inflate.java` to use `this.marker` directly instead of a local variable `m`, eliminating the redundant self-assignment while preserving logic.
- Updated `.github/scripts/generate-quality-report.py` to enforce `SA_FIELD_SELF_ASSIGNMENT` check.

Author: google-labs-jules[bot]

CodenameOne/src/com/codename1/io/gzip/Inflate.java

@@ -623,15 +623,14 @@ int inflateSync() {
             return Z_BUF_ERROR;
 
         p = z.next_in_index;
-        m = this.marker;
         // search
-        while (n != 0 && m < 4) {
-            if (z.next_in[p] == mark[m]) {
-                m++;
+        while (n != 0 && this.marker < 4) {
+            if (z.next_in[p] == mark[this.marker]) {
+                this.marker++;
             } else if (z.next_in[p] != 0) {
-                m = 0;
+                this.marker = 0;
             } else {
-                m = 4 - m;
+                this.marker = 4 - this.marker;
             }
             p++;
             n--;
@@ -641,12 +640,9 @@ int inflateSync() {
         z.total_in += p - z.next_in_index;
         z.next_in_index = p;
         z.avail_in = n;
-        if (this.marker != m) {
-            this.marker = m;
-        }
 
         // return no joy or set up to restart on a new block
-        if (m != 4) {
+        if (this.marker != 4) {
             return Z_DATA_ERROR;
         }
         r = z.total_in;